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List of social networking websites

List of social networking websites

Overview
This is a list of major active social networking
Social network service
A social network service focuses on building online communities of people who share interests and/or activities, or who are interested in exploring the interests and activities of others...

 websites
; for defunct social networking websites see List of defunct social networking websites
Discussion
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Encyclopedia
This is a list of major active social networking
Social network service
A social network service focuses on building online communities of people who share interests and/or activities, or who are interested in exploring the interests and activities of others...

 websites
; for defunct social networking websites see List of defunct social networking websites

Please note the list is not exhaustive, and is limited to some notable, well-known sites.

Name Description/Focus Registered user
Registered user
A registered user is one who uses a program or a website and provides his credentials, effectively proving his identity.-Technical differences:...

s
Registration Global Alexa
Alexa Internet
Alexa Internet, Inc. is a California, U.S.-based subsidiary company of Amazon.com that is known for its toolbar and website. Once installed, the toolbar collects data on browsing behavior which is transmitted to the website where it is stored and analyzed and is the basis for the company's web...

 Page ranking
Adult FriendFinder
Adult FriendFinder
Adult FriendFinder is an online sex and swinger personals community website. It allows members to meet friends or sex partners.The site was founded by Andrew Conru . It is consistently ranked between the 40th and 60th most visited website on the Internet and claims to have over 20 million members...

Adults Only Porn Network 33,000,000 Open 71
Advogato
Advogato
Advogato is an online community site dedicated to free software development, created by Raph Levien. It describes itself as "the free software developer's advocate." Advogato was an early pioneer of "online diaries", which later became known as blogs, and one of the earliest social networking...

Free
Free software
Free software, software libre or libre software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with minimal restrictions only to ensure that further recipients can also...

 and open source software developers
13,575 Open 118,124
Amie Street
Amie Street
Amie Street is an indie online music store and social network service created in 2006 by Brown University seniors Elliott Breece, Elias Roman, and Joshua Boltuch, in Providence, Rhode Island...

Music Open 30,628
ANobii
ANobii
aNobii is a social networking site targeted to worldwide booklovers. The idea behind aNobii is simple: create an online platform for avid-readers to share reviews, recommendations, and most important of all, find other similar-taste booklovers....

Books 0 Open 13,111
aSmallWorld
ASmallWorld
aSmallWorld is an online social network service similar to Facebook and LinkedIn. Dubbed "Snobster" by critics, it is an exclusive invitation-only network with roughly 550,000 members founded by Erik Wachtmeister.-Features:...

European jet set
Jet set
"Jet set" is a journalistic term that was used to describe an international social group of wealthy people, organizing and participating all around the world in social activities that are unreachable to ordinary people...

 and social elite
270,000 Invite-only
Invitation system
An invitation system is one method of website registration. Unlike open registration, where all users can join, and closed registration, where there is a moratorium on new users joining, invites allow current users to select who can join, while allowing site administrators to maintain a...

11,655
Athlinks Running, Swimming 68,496 Open 107,826
Avatars United
Avatars United
Avatars United is a web community for avatars of online games and virtual worlds. It was launched in March 2008 by Sweden-based Enemy Unknown.-Features:...

Online games. Open 302,122
Badoo
Badoo
Badoo is a multi-lingual social networking website, often referred to as British based, but actually owned by an offshore company in Cyprus. In a Cambridge University report, it was given the lowest score for privacy among 45 social social networking sites examined.- Origins :Launched in May 2006,...

General, Popular in Europe 37,000,000 Open to people 18 and older 146
Bebo
Bebo
Bebo, an acronym for "Blog early, blog often", is a social networking website, founded in January 2005. It can be used in many countries including Ireland, Canada, the United States, the United Kingdom, New Zealand and Australia. A Polish version was launched recently, which uses a different user...

General. 40,000,000 Open to people 13 and older 148
Bigadda
BIGADDA
BIGADDA is a social networking website belong to the internet and new media vertical of Reliance Entertainment, part of the Reliance Anil Dhirubhai Ambani Group...

Indian Social Networking Site. 3,000,000 Open to people 16 and older. 2,900
BigTent
BigTent
BigTent is a web-based organization and communication portal for groups. Groups can plan events, manage memberships, host discussion forums, collect payments, and organize subgroups. Examples of groups using BigTent are parenting groups, neighborhood groups, school groups, alumni and professional...

organization and communication portal for groups Open to people 18 and older (13-18 parental permission encouraged 6,480
Biip
Biip
Biip.no is the third largest Internet-based community in Norway with more than 320,000 users and profiles . It was founded on June 1, 2005, and is owned by Mediehuset Nettavisen AS, a Norwegian news company, the Danish publishing house Egmont and the founders. Users use nicknames instead of real...

Norwegian Community. 13,476 Requires Norwegian phone number. 16,645
BlackPlanet African-Americans 20,000,000 Open 1,226
Blogster
Blogster
Blogster is a blogging community that features specific-interest blogs. Compared to other blogging services, Blogster differentiates itself as having spam-free blogs.-History:...

Blogging service that lets users "add friends" or establish business connections to their profiles. 58,344 Open 56,910
Broadcaster.com
Broadcaster.com
Broadcaster.com is a video entertainment community and live webcam social network. The site allows users to create personal profiles, post pictures, upload videos, and chat with the site's other users through a live webcam chat feature. User uploaded video clips can be rated, and the ratings and...

Video sharing and webcam chat 322,715 Open
Buzznet
Buzznet
Buzznet.com is a photo, journal, and video-sharing social media network. Like other social networking sites, Buzznet is a place for members to share content based on their personal interests...

Music and pop-culture 10,000,000 Open 498
CafeMom
CafeMom
CafeMom is an ad-supported social networking website specifically targeted at mothers, offering member-generated content such as profiles, journals, groups, photos, and polls....

Mothers 1,250,000 Open to moms and moms-to-be 3,090
Cake Financial
Cake Financial
Cake Financial is a free web-based financial services social network for individual investors allowing members to share their real stock portfolios and performance with other members. The site was introduced publicly at the September 2007 TechCrunch40 Conference by Founder and CEO, Steven...

Investing 0 Open
Care2
Care2
Care2 is a social network website that was founded by Randy Paynter in 1998 to help connect activists from around the world. It has a membership of approximately 9 million people....

Green
Green Movement
Green Movement refers to a series of actions after the Iranian presidential election, 2009, in which protesters demand removal of Mahmoud Ahmadinejad from office...

 living and social activism
9,961,947 Open
Classmates.com
Classmates.com
Classmates.com is a social network service created in 1995 by Randy Conrads who founded Classmates Online, Inc. The social media website helps members find, connect and keep in touch with friends and acquaintances from throughout their lives — including kindergarten, primary school, high school,...

School, college, work and the military 50,000,000 Open to people 18 and older 923
Cloob
Cloob
Cloob.com is a Persian-language social networking website, mainly popular in Iran. After the locally popular social networking website Orkut was censored by the Iranian government, a series of local sites and networks emerged to fill the gap, with Cloob being one of them...

General. Popular in Iran. 0 Open
College Tonight
College Tonight
College Tonight is a social networking service for U.S. college-aged students, graduate students, and alumni. It focuses on nightlife events and social opportunities on and near college campuses. Students utilize the service to explore their communities and socially interact...

College students. 0 requires an e-mail address with an ".edu" ending
CouchSurfing
CouchSurfing
The CouchSurfing Project is the largest hospitality exchange network, with approximately 1.4 million members in 231 countries and territories. According to Alexa it is currently the most visited hospitality service on the Internet, averaging more than 30 million daily page views in July 2008.-How...

Worldwide network for making connections between travelers and the local communities they visit. 1,118,447 Open
DailyStrength
DailyStrength
DailyStrength is a social networking website where users provide one another with emotional support by discussing their struggles and successes with each other. The site contains online communities that deal with different medical conditions or life challenges...

Medical & emotional support community - Physical health, Mental health, Support groups Open 17,465
DeviantART
DeviantArt
DeviantArt is an American online community with worldwide appeal showcasing various forms of user-made artwork. It was first launched on August 7, 2000 by Scott Jarkoff, Matthew Stephens, Angelo Sotira and others. DeviantArt, Inc. is headquartered in the Hollywood area of Los Angeles, California,...

Art community 9,040,962 Open 119
Disaboom
Disaboom
Disaboom is a social networking website, described by founder Dr. Glen House as a premier interactive online community dedicated to improving the way individuals with disabilities or functional limitations live their lives. The site serves as a comprehensive resource for those living with...

People with disabilities. (Amputee, cerebral palsy, MS, and other disabilities.) 0 Open
dol2day
Dol2day
dol2day is the name of a social networking platform for politically interested German speaking people. dol2day is the abbreviation for “democracy online today”. Most of the members are college and university students, pupils and younger professionals, in particular from Germany. Average age is...

Politic community, Social network, Internet radio (German-speaking countries) 40,200 Open
DontStayIn
DontStayIn
DontStayIn, commonly abbreviated to DSI, is a social networking site based around clubbing. Primarily covering the UK it lists nearly 185,000 events and has over 430,000 verified members. Members are encouraged to upload picture galleries to the site for events they've attended, add events and...

Clubbing (primarily UK) 0 Open
Draugiem.lv General (primarily LV, LT, HU) 2,400,000 Invitation only
Elftown
Elftown
Elftown is an Internet community or social networking site for people interested in fantasy and science fiction. It was started as the official Elfwood social networking site in February 2002 by Henrik Wallin...

Community and wiki around Fantasy
Fantasy
Fantasy is a genre that uses magic and other supernatural forms as a primary element of plot, theme, and/or setting. Many works within the genre take place on fictional planes or planets where magic is common...

 and sci-fi.
185,000 Open, approval needed
Epernicus
Epernicus
Epernicus is a social networking website and professional networking platform resource built by scientists for research scientists. Its main goal is to help scientist to find the right people with the right expertise at the right time...

For research scientists 0 Open
Eons.com For baby boomers 0 Open to people 13 and older 13,675
Experience Project
Experience Project
Experience Project is a free social networking website of passion-based online communities premised on connecting people through shared life experiences. With an interactive, user-submitted network of personal stories, confessions, blogs, groups, photos, and videos, the company has collected over...

Life experiences 0 Open
Exploroo
Exploroo
Exploroo is a free-access social network website that is operated and privately owned by Exploroo Pty Ltd. It is an information loaded one-stop website for everything travel related. People can add friends and send them messages, and can also add travel stories or videos and review photos and...

Travel Social Networking. Open 159,000
Facebook
Facebook
Facebook is a global social networking website that is operated and privately owned by Facebook, Inc. Users can add friends and send them messages, and update their personal profiles to notify friends about themselves. Additionally, users can join networks organized by city, workplace, school, and...

General. 300,000,000 Open to people 13 and older 2
Faceparty
Faceparty
Faceparty is a UK-based social networking site allowing users to create online profiles and interact with each other using forums and messaging facilities similar to email.-History:...

General. Popular UK. 200,000 Invitation only to people 18 and older. 2,481
Faces.com British teens 0 Open to people 13 and older
Fetlife
Fetlife
FetLife is a social networking website that serves people interested in BDSM, Fetishism and Kink. It describes itself as similar to Facebook and MySpace but run by kinksters. It is also private, in that membership is required to view content. The site is not indexed by search engines.Membership is...

People who are into BDSM 32,500 Open to people "of [legal] age to see adult content" 54,198
Filmaffinity
Filmaffinity
Filmaffinity is a movie recommendations website created in 2002. Extremely popular in the Spanish-language countries -according to their number of visits in Nielsen-, it was chosen by the PC magazine -US edition- one of the best entertainment sites of 2004....

Movies and TV Series 250,000 Open 4,082
FledgeWing
FledgeWing
FledgeWing is an online community aimed at entrepreneurial university students launched in February 2009. Founded by two NYU Stern students in October 2007, the site currently supports 170 universities worldwide...

Entrepreneural community targeted towards worldwide university students. 0 Open to university students
Flixster
Flixster
Flixster is a social movie site allowing users to share movie ratings, discover new movies and meet others with similar movie taste.-Site statistics:...

Movies 63,000,000 Open to people 13 and older 309
Flickr
Flickr
Flickr is an image and video hosting website, web services suite, and online community platform. In addition to being a popular website for users to share personal photographs, the service is widely used by bloggers as a photo repository...

Photo sharing, commenting, photography related networking, worldwide 32,000,000 Open to people 13 and older. 33
Fotolog
Fotolog
Fotolog.com is a Web 2.0-based shared photoblog web site. With over 23 million registered users, it is one of the oldest and largest sites for sharing pictures through online photo diaries or photo blogs.-History:...

Photoblogging. Popular in South America and Spain. 20,000,000 Open 182
Friends Reunited
Friends Reunited
Friends Reunited is a portfolio of social networking websites based upon the themes of reunion with research , and job-hunting...

UK based. School, college, work, sport and streets 19,000,000 Open to people 13 and older. 8,052
Friendster
Friendster
Friendster is a privately owned social networking website. Its headquarters are in Sydney, Australia. The service allows users to contact other members, maintain those contacts, and share online content and media with those contacts. The website is also used for dating and discovering new events,...

General. Popular in Southeast Asia
Southeast Asia
Manila
Bangkok
Ho Chi Minh City
Kuala Lumpur
Singapore
Yangon
Bandung
Hanoi
Surabaya
Taichung
Kaohsiung
Medan|-|}...

. No longer popular in the western world
Western world
The Western world, also known as the West and the Occident , is a term that can have multiple meanings depending on its context...

.
90,000,000 Open to people 16 and older. No children allowed. 93
Frühstückstreff
Frühstückstreff
Frühstückstreff is an international, multi-lingual breakfast club initiative located in over 50 cities in Europe and Australia. Founded in July 2001, the social networking site allows gentle people to meet for breakfast, share their hobbies and special interests with other members of the...

General 14,800 Open
Fubar
Fubar (social networking site)
fubar is a social network launched in Summer-Early Fall 2005 as the first "online bar". In October 2007, they teamed up with Jangl to provide their members with the ability to call other members anonymously....

dating, an "online bar" for 18 and older 1,200,000 Open 2,609
Gaia Online
Gaia Online
Gaia Online is an English-language, anime-themed social networking and forums-based website. It was founded in 2003 as Go-Gaia.com, but the name was changed to GaiaOnline.com in 2004 by its owner, Gaia Interactive...

Anime
Anime
is animation originating in Japan. The world outside Japan regards anime as "Japanese animation". Anime originated about 1917.Anime, like manga , has a large audience in Japan and high recognition throughout the world...

 and games
0 Open to people 13 and older
GamerDNA
GamerDNA
GamerDNA Inc. is a social media company for computer and video game players founded on September 21, 2006. Members may tag themselves with information on games they have played, server names and guild affiliations, and use this information to find people they have played with in the past, or find...

Computer and video games 310,000 Open
Gather.com
Gather.com
Gather or Gather.com is a social networking website designed to encourage interaction through various social, political and cultural topics. Its headquarters are in Boston, Massachusetts....

Article, picture, and video sharing, as well as group discussions 465,000 Open
Geni.com
Geni.com
Geni.com is a genealogy-related social networking website launched in beta mode on January 16 2007 by Web 2.0 company Geni, Inc. Over thirty million profiles were created on Geni by over two million users as of September 30, 2008...

Families, genealogy 15,000,000 Open
Gogoyoko
Gogoyoko
gogoyoko.com is a social networking music website and an online music store where artists and music fans can interact and transact. Artists and record labels sell their music and make it available for listening via streaming. Music fans can listen to music and buy it...

Fair play in Music - Social networking site for musicians and music lovers 0 Invite only while in beta 89,513
Goodreads
Goodreads
Goodreads is a privately run "social cataloging" website started in December 2006 by Otis Chandler, a software engineer and entrepreneur. The website permits individuals to sign up and register books to create their library catalogs and reading lists...

Library cataloging, book lovers 0 Open 5,305
Gossipreport.com
Gossipreport.com
GossipReport.com is a self-described social networking site that was created in June 2006. The website's users have the ability to anonymously gossip about anyone they want. Instead of creating a profile about themselves, GossipReport.com members can anonymously create a profile about someone...

Anonymous gossip 0 Open to people 16 and older
Grono.net
Grono.net
Grono.net is a large social networking website in Poland. Apart from many discussion forums it allows to share photos, find cultural events in particular cities, sell property and find work...

Poland
Poland
Poland , officially the Republic of Poland , is a country in Central Europe . Poland is bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

2,000,000 Open
Habbo
Habbo
Habbo is a social networking website aimed at teenagers. The website is owned and operated by Sulake Corporation...

General for teens. Over 31 communities worldwide. Chat Room
Chat room
The term chat room, or chatroom, is primarily used by mass media to describe any form of synchronous conferencing, occasionally even asynchronous conferencing...

 and user profiles.
117,000,000 Open to people 13 and older 4,050
hi5
Hi5 (website)
Hi5 is a social networking website. The company was founded in 2003 by Ramu Yalamanchi who is also the current CEO. As of January 2009, Hi5 claims to have over 60 million active members.-Features:...

General. Popular in India
India
India, officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the west, and the Bay of Bengal...

,Portugal
Portugal
Portugal , officially the Portuguese Republic , is a country located in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of mainland Europe and is bordered by the Atlantic Ocean to the west and south and by Spain to the north and east...

, Mongolia
Mongolia
Mongolia is a landlocked country in East and Central Asia. It borders Russia to the north and the People's Republic of China to the south, east and west. Although Mongolia does not share a border with Kazakhstan, its western-most point is only 24 miles from Kazakhstan's eastern tip. Ulan Bator,...

, Thailand
Thailand
The Kingdom of Thailand is an independent country that lies in the heart of Southeast Asia.It is bordered to the north by Laos and Burma, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the west by the Andaman Sea and Burma...

, Romania
Romania
Romania is a country located in Southeastern and Central Europe, North of the Balkan Peninsula, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea. Almost all of the Danube Delta is located within its territory...

, Jamaica
Jamaica
Jamaica is an island nation of the Greater Antilles, in length and as much as in width, amounting to 11,100 km2. It is situated in the Caribbean Sea, about south of Cuba, and west of Hispaniola, the island harboring the nation-states Haiti and the Dominican Republic...

, Central Africa
Central Africa
Central Africa is a core region of the African continent often considered to include Burundi, the Central African Republic, Chad, Democratic Republic of the Congo, and Rwanda....

 and Latin America
Latin America
Latin America is a region of the Americas where Romance languages  – particularly Spanish, Portuguese, and variably French – are primarily spoken. Latin America has an area of approximately 21,069,501 km² , almost 3.9% of the Earth's surface or 14.1% of its land surface area...

. Not popular in the USA.
80,000,000 Open to people 13 and older. No children allowed. 38
Hospitality Club
Hospitality Club
The Hospitality Club is an international, Internet-based hospitality service of appr. 553,000 members in 226 countries Its members use the website HospitalityClub.org to coordinate accommodation and other services, such as guiding or regaling travelers...

Hospitality 328,629 Open
Hyves
Hyves
Hyves is a free Dutch social networking site which has been online since October 2004. The site was launched by Raymond Spanjar, Koen Kam and Floris Rost van Tonningen. The name Hyves comes from the English Beehive - not from Hives, hereby comparing the users to bees in a hyve...

General, Most popular in the Netherlands. 9,000,000 Open 216
ibibo
Ibibo
Ibibo which stands for iBuild, iBond, is an Indian social networking site. It is an umbrella site that offers a variety of applications under its social network.Ibibo, is funded by the electronic media arm of South African company Naspers,MIH...

Talent based social networking site that allows to promote one's self and also discover new talent. Most popular in India
India
India, officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the west, and the Bay of Bengal...

.
3,500,000 Open 841
imeem
Imeem
imeem is a social media service where users interact with each other by watching, posting, and sharing content of all digital media types, including blogs, photos, audio, and video. The company was founded by Dalton Caldwell and Jan Jannink and many of the core engineers came from the original...

Music, Video, Photos, Blogs 24,000,000 Open 140
IRC-Galleria
IRC-Galleria
IRC-Galleria is the largest social networking website in Finland. It was founded in December 2000 by Tomi Lintelä as a photo gallery for the Finnish users of Internet Relay Chat . As of April 2009, IRC-Galleria has over 500,000 registered users and 9 million images. Over 90% of the users are...

Finland 505,000 Open to Finnish speaking people 12 and older
italki.com
Italki.com
italki is an online destination for language learning, comprised of a social network and marketplace. The company is based in Shanghai, China. italki was founded by American and Chinese entrepreneurs.- Features :...

Language learning social network. 100+ languages. 450,000 Open. Global. 15,500
InterNations
InterNations
InterNations.org is an international social network service, launched as a Web 2.0 website in its Beta version on September 11, 2007 and designed with expatriates in mind...

International community 0 Invite-only
Invitation system
An invitation system is one method of website registration. Unlike open registration, where all users can join, and closed registration, where there is a moratorium on new users joining, invites allow current users to select who can join, while allowing site administrators to maintain a...

30,147
itsmy
Itsmy
itsmy is a pure mobile social networking service which combines mobile communication and personal content sharing. It is a brand of Gofresh, Munich Germany. 2008 more than 2 1/2 million mobile phone user worldwide, used the Versions available in English, German, Italian, Spanish and Japanese....

Mobile community worldwide, blogging, friends, personal TV-shows 2,500,000
iWiW
IWiW
iWiW is a Hungarian social networking web service started on April 14, 2002 as WiW . , it has 2,6 million registered users with real names. The site is invite-only...

Hungary
Hungary
Hungary , in English officially the Republic of Hungary , is a landlocked country in the Carpathian Basin of Central Europe, bordered by Austria, Slovakia, Ukraine, Romania, Serbia, Croatia, and Slovenia. Its capital is Budapest. Hungary is a member of OECD, NATO, EU, V4 and is a Schengen state...

4,000,000 Invite-only
Invitation system
An invitation system is one method of website registration. Unlike open registration, where all users can join, and closed registration, where there is a moratorium on new users joining, invites allow current users to select who can join, while allowing site administrators to maintain a...

Jaiku
Jaiku
Jaiku is a social networking, micro-blogging and lifestreaming service comparable to Twitter. Jaiku was founded in February 2006 by Jyri Engeström and Petteri Koponen from Finland and launched in July of that year. It was purchased by Google on October 9, 2007.- History :Jaiku was created in...

General. Owned by Google
Google
Google Inc. is an American public corporation, earning revenue from advertising related to its Internet search, e-mail, online mapping, office productivity, social networking, and video sharing services as well as selling advertising-free versions of the same technologies. Google has also...

.
0 Open to people 13 and older.
Jammer Direct Creative resource website 0 Open to the General Public
kaioo
Kaioo
kaioo is a non-profit social network website that started in November 2007 as a beta version in English and German. It was founded by the German executives Thomas Kreye and Rolf Schmidt-Holtz....

General, nonprofit 30,000
Kaixin001
Kaixin001
Kaixin001 is a social networking website launched in April, 2008. The startup has grown to more than 8 million active users in China in less than 5 months. They are rumored to have raised their first round of capital....

General. In Simplified Chinese; caters for mainland China users 0 Open to the General Public 102
Kiwibox
Kiwibox
Kiwibox.com is a free teen magazine and social network that is owned by Magnitude Information Systems , founded in 1999. - Company Information :...

General. For the users, by the users, a social network that is more than a community. 2,400,000 Open to people 13 and older. 22,693
Last.fm
Last.fm
Last.fm is a UK-based Internet radio and music community website, founded in 2002. It claims over 30 million active users based in more than 200 countries...

Music 30,000,000 Open to people 13 and older 262
LibraryThing
LibraryThing
LibraryThing is a social cataloging web application for storing and sharing personal library catalogs and book lists.LibraryThing was developed by Tim Spalding and went live on August 29, 2005...

Book lovers 400,000 Open to people 13 and older
lifeknot
Lifeknot
lifeknot is a social networking website with a focus on shared interests and hobbies.It was founded in November 2003 by Matt Muro, is based in Boston, MA and is privately owned....

Shared interests, hobbies 0 Open to people 18 and older.
LinkedIn
LinkedIn
LinkedIn is a business-oriented social networking site founded in December 2002 and launched in May 2003 mainly used for professional networking. , it had more than 50 million registered users, spanning more than 200 countries and territories worldwide....

General but mainly business 50,000,000 Open to people 18 and older. 59
LiveJournal
LiveJournal
LiveJournal is a virtual community where Internet users can keep a blog, journal or diary. LiveJournal is also the name of the free and open source server software that was designed to run the LiveJournal virtual community...

Blogging 17,564,977 Open (OpenID
OpenID
OpenID is an open, decentralized standard for authenticating users which can be used for access control, allowing users to log on to different services with the same digital identity where these services trust the authentication body...

)
76
Livemocha
Livemocha
Livemocha is a social network service where users can learn languages through audio-visual lessons, peer tutoring tools and support systems. Users can aid others in learning the languages that they are proficient in while learning other languages themselves...

Online language learning - dynamic online courses in 22 languages - world’s largest community of native language speakers. 3,000,000 Open 5,505
LunarStorm
LunarStorm
LunarStorm is a commercial, advertisement financed Swedish social networking website for teenagers, operated by a company called LunarWorks. According to the company's official statistics, the website has 1.2 million members, of whom some 70% are 12-17 years old.The predecessor to Lunarstorm was...

Sweden 1,200,000 Open
MEETin
MEETin
MEETin.org , orthe MEETin group, is a web-based social community dedicated to providing a casual social environment for people without charging membership fees, or otherwise profiting from events...

General 0 Open
Meetup.com
Meetup.com
Meetup.com is an online social networking portal that facilitates offline group meetings in various localities around the world. Meetup allows members to find and join groups unified by a common interest, such as politics, books, games, movies, health, pets, careers or hobbies...

General. Used to plan offline meetings for people interested in various activities. 0 Open to people 18 and older.
Meettheboss
Meettheboss
MeettheBoss is a business networking tool for business executives around the world, across all vertical industries. Content is all in english....

Business and Finance community, worldwide. Open
Mixi
Mixi
mixi, Inc. is one of several social networking websites in Japan. As of May 2008, mixi had over 10 million users and an 80% share of the social networking market in Japan...

Japan
Japan
is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

24,323,160 Invite-only
Invitation system
An invitation system is one method of website registration. Unlike open registration, where all users can join, and closed registration, where there is a moratorium on new users joining, invites allow current users to select who can join, while allowing site administrators to maintain a...

90
mobikade
Mobikade
mobikade is a free mobile social networking service aiming to bring Japanese mobile SNS sites to Europe, starting off in the UK. It differentiates from other social networking sites by the fact that it is an exclusively mobile based community and accessible only through the mobile phone.- History...

mobile community, UK only 0 Open to people 18 and older
MocoSpace
MocoSpace
MocoSpace is a social network specifically designed for use on a mobile device, also known as a mobile social network. The features of the site are similar to other social networking sites. Features include mobile chat, instant messaging, photo and video sharing, as well as forums...

mobile community, worldwide 3,000,000 Open to people 14 and older
MOG
MOG (online music)
MOG is a social networking site where computer users who listen to their music primarily on their computers or iPods can set up personal pages with their musical interests and listening history. There are tools for connecting with other similar users...

Music 0 Open to people 14 and older
Moozement
Moozement
Moozement.com is a web based service, which offers a social way to keep track of your and your friends' sports activities. The service is currently in alpha stage with a beta release expected in fall 2009. Moozement is run by Mooze Oy , a privately owned company based in Helsinki, Finland founded...

Social training log 0 Open
Mouthshut Social Network, social media, consumer reviews 0 Open
Multiply "Real world" relationships. Popular in Asia
Asia
Asia is the world's largest and most populous continent, located in the eastern and northern hemispheres. It covers 8.6% of the earth's total surface area and with approximately 4 billion people, it hosts 60% of the world's current human population.Asia is traditionally defined as part of the...

. Not popular in the western world
Western world
The Western world, also known as the West and the Occident , is a term that can have multiple meanings depending on its context...

.
10,000,000 Open to people 13 and older. No children allowed. 150
Muxlim
Muxlim
Muxlim is a social networking website service for Muslims. Founded in 2006 by Mohamed El-Fatatry and Pietari Päivänen of Finland, the company was created as a social media website which would adhere to the principles of Islam concerning vulgarity, offensive content, and adult material...

Muslim portal site 50,000 Open to people 13 and older 94,338
MyAnimeList
MyAnimeList
MyAnimeList, often abbreviated as MAL, is a social networking website. The site provides its users with a list-like system to organize anime and manga. It facilitates finding users who share similar tastes and provides a large database on anime and manga.The website was created and is actively...

Anime themed social community 160,000 Open to people 13 and older 4,500
MyChurch
MyChurch
MyChurch is a Christian social network which was launched on September 6, 2006. It offers a social network service for Christian churches that follow the Nicene Creed, with features modeled after those found in MySpace and Facebook...

Christian Churches 144,295 Open 33,621
MyHeritage
MyHeritage
MyHeritage is a family-oriented social network service and genealogy website. It allows members to create their own family websites, share pictures and videos, organize family events, create family trees, and search for ancestors...

family-oriented social network service 30,000,000 Open 4,735
MyLife Locating friends and family, keeping in touch (formerly Reunion.com
Reunion.com
MyLife is a social network service founded in 2002 by Jeffrey Tinsley after meeting his wife at their high school reunion. The company began with the acquisition of highschoolalumni.com and PlanetAlumni.com...

)
51,000,000 Open 2,311
MyLOL
MyLOL
MyLOL is a social networking and dating website aimed at teenagers, founded in November 2006. The site has around 30,000 members from countries including United States, Canada, the United Kingdom, New Zealand and Australia...

General. Popular in the United States, Europe and Australia. 32,000 Open to ages 13 and up. 253,145
My Opera Community
My Opera Community
My Opera is the support community for the Opera web browser. More than 4,500 new members join per day, and the site has more than 3 million members...

Blogging, mobile blogging, sharing photos, connecting with friends. Global. 3,000,000 Open
MySpace
MySpace
MySpace is a social networking website. Its headquarters are in Beverly Hills, California, USA, where it shares an office building with its immediate owner, Fox Interactive Media, which is owned by News Corporation. MySpace became the most popular social networking site in the United...

General. Has lost some popularity in 2007 and 2008, but has started to experience a slight renaissance lately. Open to ages 13 and up. 11
myYearbook
MyYearbook
myYearbook is a free Internet social network service similar to other social networking sites.The site's user base is over 90% American, with 75% of its new memberships from the United States and 25% from other countries. U.S...

General 5,100,000 Open to age 13 and up & Grades 9 and up 894
Nasza-klasa.pl
Nasza-klasa.pl
Nasza-klasa.pl is a large Polish social networking service, bringing together school's students and alumni....

School, college and friends. Popular in Poland. 11,000,000 Open
Netlog
Netlog
Netlog is a Belgian social networking website specifically targeted at the European youth demographic....

General. Popular in Europe, Turkey, the Arab World and Canada's Québec province. Formerly known as Facebox and Redbox. 54,000,000 Open to people 13 and older 102
Nettby
Nettby
Nettby.no is the second largest Internet-based community in Norway with more than 980,000 users and profiles . It was founded on September 14, 2006, and is fully owned by VG Multimedia AS, a Norwegian news company, and Nettby Community Holding AS. Users use nicknames instead of real names. Users'...

Norwegian Community. 0 Open
Nexopia
Nexopia
Nexopia.com is a popular Canadian social networking website based in downtown Edmonton which was created by Timo Ewalds. It is designed as a general interactive site for people aged 14 and up, but the age limit recently was lowered to 13. Users are able to create and design their own profiles,...

Canada 1,400,000 Open to people 13 and older 4,362
NGO Post
NGO Post
is a non-profit organization based in India and the US that allows citizen journalism in social work field by providing an online forum for people to share and discuss various social-welfare ideas. Everyday, worldwide, non-profit organizations work hard on solving problems in their area without...

Non-Profit news sharing and networking, mainly in India 15,000 Open 70,883
Ning Users create their own social websites and social networks 0 Open to people 13 and older 566
Odnoklassniki General. Popular in Russia and former Soviet republics 40,000,000 Open 72
OkCupid
OKCupid
OkCupid is a social networking and dating website which features member-created quizzes and supports various modes of communication: personal blogs, public forums, instant messages, emails, and "winks"...

Social networking and dating 0 Open to people 18 and older
OneClimate
OneClimate
OneClimate is a nonprofit internet climate news, social activism and social networking site, and part of internet portal Oneworld.net. It received international media attention during the 2007 United Nations Climate Change Conference for its 'Virtual Bali' initiative.In December 2007, Ed Markey...

Not for Profit Social networking and Climate Change
Climate change
Climate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. It can be a change in the average weather or a change in the distribution of weather events around an average...

0 Open to People of all ages and locations
OneWorldTV
OneWorldTV
OneWorldTV is a nonprofit internet video sharing and social networking site aiming to promote Global Justice and Social Good through film and documentary on areas such as Environment, Africa, Education and trade justice to name but a few....

Not for Profit Video sharing and social networking aimed at people interested in social issues, development, environment, etc. 0 Open
Open Diary
Open Diary
Open Diary is an online diary community, an early example of social networking software. It was founded on October 22, 1998 by Bruce Ableson, known on the Open Diary website by the title of his diary, The DiaryMaster...

First online blogging community, founded in 1998. 5,000,000 Open to people 13 and older 25,713
Orkut
Orkut
Orkut is a free-access social networking service owned and operated by Google. The service is designed to help users meet new friends and maintain existing relationships...

Owned by Google. Popular in Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is a country in South America. It is the fifth largest country by geographical area, occupying nearly half of South America, the fifth most populous country, and the fourth most populous democracy in the world. Bounded by the Atlantic Ocean...

 and India
India
India, officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the west, and the Bay of Bengal...

.
67,000,000 Open to people 18 and older, (Google
Google
Google Inc. is an American public corporation, earning revenue from advertising related to its Internet search, e-mail, online mapping, office productivity, social networking, and video sharing services as well as selling advertising-free versions of the same technologies. Google has also...

 login)
112
OUTeverywhere
OUTeverywhere
OUTeverywhere is a website providing an online lesbian, gay, bisexual, and transgender community, chiefly in the UK, although it has members worldwide. The site provides member profiles with picture galleries, private messages, discussion boards and online chat...

Gay
Gay
The term gay was originally used, until well into the mid-20th century, primarily to refer to feelings of being "carefree", "happy", or "bright and showy"; it had also come to acquire some connotations of "immorality" as early as 1637....

/LGBTQ Community
0 Open
PartnerUp
PartnerUp
PartnerUp is an online networking community that entrepreneurs and small business owners use to find the expertise and resources they need to start and grow a business. Members can connect with potential partners, advisers, and business resources.-Web site:...

Social networking site for entrepreneurs and small business owners 150,000 Open and Free
Passportstamp
Passportstamp
Passportstamp.com is a social networking website for travelers to record their overseas visits and to record their locations as they travel round the world....

Travel 0 Open
Pingsta
Pingsta
Pingsta is an intellectual collaboration platform exclusively for Internet engineers. It was founded in Palo Alto, California, United States by Peter Alfred-Adekeye in February 2007 to serve as an intellectual collaborative tool for all the network inventors, scientists, distinguished engineers...

Collaborative platform for the world's Internetwork Experts 0 Invite-only, only Internet Experts
Plaxo
Plaxo
Plaxo is an online address book and social networking service founded by Napster co-founder Sean Parker, Minh Nguyen and two Stanford engineering students, Todd Masonis and Cameron Ring. The company was named by David Weekly...

Aggregator 15,000,000 Open
Playahead
Playahead
Playahead is a large Internet community mainly aimed at Swedish teenagers. The site was founded in Helsingborg in 1998 and claims to have 2.9 million members, making an average of around 5,9 million logins per month. As of May 2009 the site had an Alexa rank of around 29,000.-External links:**...

Swedish, Danish,Norwegian teenagers 0 Open
Playboy U
Playboy U
Playboy U is a social networking site owned and operated by Playboy Enterprises, Inc. Launched in August 2007, the site is inspired by other popular social networking sites, such as MySpace and Facebook, in that users may add other users as "friends," post videos and photos, leave comments and...

Online college community 0 Open to college students with .edu e-mail address
Plurk
Plurk
Plurk is a free social networking and micro-blogging service that allows users to send updates through short messages or links, which can be up to 140 text characters in length....

Micro-blogging, RSS, updates 0 Open 27,061
Present.ly
Present.ly
Presently is a microblogging service launched in 2008 and given a Webware 100 Editors' Choice award in 2009 by CNET.The New York Times cites "security and privacy" as Present.ly's top selling points- External links :**...

Enterprise social networking and micro-blogging 0 Open
Qapacity
Qapacity
Qapacity is a business-oriented social networking site and a business directory founded in March 2008 and launched in February 2009. User are given a set of tools to promote their business online, to keep their clients and business partners up-to-date with their work and to reach new clients.-...

A a business-oriented social networking site and a business directory 0 Open to people 16 and older 108,745
quarterlife
Quarterlife
Quarterlife is an American web series, also briefly an NBC television series, created by Marshall Herskovitz and Edward Zwick, the creators of Thirtysomething and Once and Again, and producers of My So-Called Life...

A social network for artists, filmmakers, musicians, and creative people 0 Open to people 14 and older
Qzone
Qzone
Qzone is a social networking website, which was created by Tencent in 2005. It permits users to write blogs, keep diaries, send photos, and listen to music. Users can set the background of Qzone and accessories based on their preferences so that every Qzone is customized to the user's taste...

General. In Simplified Chinese; caters for mainland China users 200,000,000 Open to the General Public
Ravelry
Ravelry
Ravelry is a social networking website, launched into beta in May 2007, that allows knitters and crocheters around the world to organize and share projects and ideas. By January 2009 over 270,000 members have signed up, and there remains an ongoing waiting list of over 5,000 members...

Knitting and crochet 331,000 Invite-only
Invitation system
An invitation system is one method of website registration. Unlike open registration, where all users can join, and closed registration, where there is a moratorium on new users joining, invites allow current users to select who can join, while allowing site administrators to maintain a...

 while in beta
Renren Significant site in China. Was known as 校内 (Xiaonei) until August 2009. 15,000,000 Open
ResearchGATE
ResearchGate
ResearchGATE is a free social networking site aimed at scientific researchers from all disciplines of Science. It provides free access to powerful web applications including semantic searching , secure time-incremented file-sharing, publication database sharing , forums, methodology discussions,...

Social network for scientific researchers 140,000 Open
Reverbnation
ReverbNation.com
ReverbNation.com is a web site, launched in 2006, that focuses on the independent music industry. It provides a central site for musicians, producers, and venues to collaborate and communicate.-Innovations:...

Social network for musician and bands 25,000 Open to people 16 and older
Ryze
Ryze
Ryze.com is a free social networking website designed to link business professionals, particularly new entrepreneurs. The site claims to have over 500,000 members in 200 countries, with over 1,000 external organizations hosting sub-networks on the site. Both paid and unpaid membership levels are...

Business 500,000 Open 20,162
scispace.net
Scispace.net
Scispace.net is a non-commercial, non-profit and free-to-use social network service designed specifically for collaborating researchers. In several respects it builds on many of the tools found in standard social network service and elearning sites, such as the use of wikis, blogs, comments, tags,...

Collaborative network site for scientists 0 By invitation, but can request an invitation
Shelfari
Shelfari
Shelfari is a social cataloging website. Shelfari users build virtual bookshelves of the titles they own or have read, and can rate, review, tag, and discuss their books. Shelfari was launched on October 11, 2006...

Books 0 Open
Skyrock
Skyrock
Skyrock.com is a social networking site offering its members a free, personal web space where they can create a blog, add a profile, and exchange messages with other registered members...

Social Network in French-speaking world 22,000,000 Open 85
SocialGO
SocialGO
SocialGO is a British company producing a social network builder that allows users to build their own online communities. Founded in June 2007, SocialGO was co-founded by Alex Halliday, Steve Hardman, and Bright Things CEO Dominic Wheatley....

A social network builder that allows users to build their own online communities 0 Open to people 18 and older. 8,457
SocialVibe
SocialVibe
SocialVibe is a social networking website with over 700,000 members founded by Joe Marchese, Brandon Mills and David Levy, that aims to reward publishers of social media content through mechanisms such as donations to their charity of choice...

Social Network for Charity 435,000 Open
Sonico.com
Sonico.com
Sonico is a free-access social networking website oriented toward a Latin American audience.Users can search and add friends, update their own personal profile, manage their privacy, upload photos and YouTube videos, organize events, challenge other users in 6 multi-player and over 200...

General. Popular in Latin America and Spanish and Portuguese speaking regions. 17,000,000 Open to people 13 and older. 297
Soundpedia
Soundpedia
Soundpedia is a Singapore-based internet radio and music community website, founded in 2006.Using its own advanced technology, Soundpedia recommendations are based on a user voting system and play counts...

Music Open 154,672
Stickam
Stickam
Stickam is a social networking website that features user-submitted pictures, audio, video, and most prominently, live streaming video chat. Additionally, it allows users to embed their streaming webcam feeds into other web sites via a Flash player. The name "Stickam" refers to this abitity to...

Live video streaming and chat. 2,000,000 Open
StudiVZ
StudiVZ
StudiVZ is a social networking platform for students , based in Berlin, Germany. The name is an abbreviation of the German expression Studentenverzeichnis, which means students' directory....

University students, mostly in the German-speaking countries. School students and those out of education sign up via its partner sites SchulerVZ and Meinvz. 15,000,000 Open 173
Supernova.com Independent music fans and artists. 200,000 Open
Tagged.com
Tagged.com
Tagged.com is a social networking site founded in 2004. Tagged is the subject of numerous customer complaints for sending deceptive bulk mail and is regarded as a phishing and spamming site and an "E-mail scam" by consumer anti-fraud advocates. It is headquartered in San Francisco, California,...

General 70,000,000 Open 94
Talkbiznow
Talkbiznow
Talkbiznow is a comprehensive interactive business networking site for business professionals. By displaying how each member is connected to any other member, it visualises the small-world phenomenon.-History:...

Business networking Open 395,824
Taltopia
Taltopia
Taltopia is an online artistic community which connects aspiring artists with fans and talent industry professionals. It was launched in Los Angeles, California on February 28, 2008 by Allen Vartazarian, a UC Berkeley graduate, and Anthony Zanontian, a UC San Diego graduate.Taltopia features...

Online artistic community 0 Open
TravBuddy.com
TravBuddy.com
travbuddy.com is a social networking Web site specializing in connecting travellers. The site was created by brothers Eric Bjorndahl and David Bjorndahl and launched in 2005 by TravBuddy LLC, a privately owned company....

Travel 1,588,000 Open to people 18 and older 11,357
Travellerspoint
Travellerspoint
Travellerspoint is a social networking site for people who want to learn from or share experiences with other travellers. Members of the site participate through forums, blogs, photo galleries and a wiki travel guide.- Major Features :...

Travel 0 Open
tribe.net
Tribe.net
tribe.net is a website that hosts an online community of friends, similar to other social networking sites. The site name is always spelled in all lower case.-History:Tribe was founded in early 2003 by Paul Martino...

General 0 Open 3,517
Trombi.com
Trombi.com
Trombi.com is a social networking website created in 2000 by André Pitié who founded Trombi SARL. This website helps members find, connect and keep in touch with friends from kindergarten, primary school, high school, college in France. Trombi.com has more than members in France...

French subsidiary of Classmates.com 4,400,000
Tuenti.com Spanish-based
Spain
Spain , officially the Kingdom of Spain , is a country located in southwestern Europe on the Iberian Peninsula.The Spanish constitution does not establish any official denomination of the country, even though España , Estado español and Nación española are used interchangeably...

 university and High School social network. Very Popular in Spain
4,500,000 Invite-only 587
Tumblr
Tumblr
Tumblr is a blogging platform that allows users to post text, images, video, links, quotes, and audio to their tumblelog, a short-form blog. Users are able to "follow" other users and see their posts together on their dashboard. Users can like or reblog other blogs on the site...

General. Micro-blogging, RSS 0 Open 587
Twitter
Twitter
Twitter is a free social networking and micro-blogging service that enables its users to send and read messages known as tweets. Tweets are text-based posts of up to 140 characters displayed on the author's profile page and delivered to the author's subscribers who are known as followers...

General. Micro-blogging, RSS, updates 44,500,000 Open 15
V Kontakte Russian social network. 46,022,000 Open 29
Vampirefreaks
Vampirefreaks
Vampirefreaks.com is an online community for the gothic/industrial subculture, and surrounding topics. It was created by site owner, Jethro Berelson in 1999...

Gothic and industrial subculture 1,931,049 Open to users 13 and over
Viadeo
Viadeo
Viadeo is a professional social network service that was begun in May 2004 by Dan Serfaty, a graduate of the French HEC School of Management in France, and Thierry Lunati. Viadeo.com now functions in six languages. In 2007 it had annual turnover of approximately €10 million...

European Social Networking and Campus Networking in Seven Languages 6,000,000 Open
ViaLynx
ViaLynx
ViaLynx is a business and social networking site founded in June 2009 and launched in September 2009 mainly used for career and professional networking.-See also:*Business network*Reputation systems*Social network*Social software...

Business and social network Open
Vox
Vox (blogging platform)
Vox is an Internet blogging service run by Six Apart, which launched on October 26, 2006. Originally, it had the codename 'Project Comet'.The service claims to be more streamlined and easier-to-use than other blogging tools available. Its design has features often associated with the Web 2.0 trend;...

Blogging 0 Open 1,549
Wakoopa
Wakoopa
Wakoopa is a social networking site that monitors the software applications its members use.- Specifications :Its members learn what software their contacts use, and receive recommendations for better software. The service includes a desktop tracker, which is a small application that runs in the...

For computer fans that want to discover new software and games. 100,000 Open
Wasabi General 0 Open
WAYN Travel and lifestyle 10,000,000 Open to people 18 and older 823
WebBiographies
WebBiographies
WebBiographies is a social network service with an emphasis on genealogy, biography and memoir writing, family trees, and online privacy.It was founded in late April, 2006 by Scott Purcell, founder of Epoch Networks and a former Board member of the Commercial Internet eXchange.In an interview for...

Genealogy
Genealogy
Genealogy is the study of families and the tracing of their lineages and history. Genealogists use oral traditions, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kinship and pedigrees of its members...

 and biography
Biography
A biography is a description or account of someone's life and the times, which is usually published in the form of a book or essay, or in some other form, such as a film. An autobiography is a biography of a person's life written or told by that same person...

0 Open
WeOurFamily
WeOurFamily
WeOurFamily is a privacy-oriented social networking website launched on June 9, 2009. The website takes a different approach to social networking by requiring users to explicitly share content with other users, instead of implicitly assuming that content should be available to anyone by default....

General with emphasis on privacy and security 0 Open, subscription-based 474,425
Windows Live Spaces
Windows Live Spaces
Windows Live Spaces is Microsoft's blogging and Social Networking platform. The site was originally released in early 2004 under the MSN Spaces name to compete with other social networking sites...

Blogging (formerly MSN Spaces) 120,000,000 Open NA (Alexa only records data for second-level domains)
WiserEarth
WiserEarth
WiserEarth is a user-generated online community space for the social and environmental movement , tracking the work of non-profits around the world...

Online community space for the social justice and environmental movement 28,300 Open to people 18 and older 80,992
Xanga
Xanga
Xanga is a website that hosts weblogs, photoblogs, and social networking profiles. It is operated by Xanga.com, Inc., based in New York City.- Origins :...

Blogs and "metro" areas 27,000,000 Open 230
XING
Xing
Xing may refer to:* an abbreviation for crossing* Xing , Chinese surname* Xing Technology* Xing County, in Shanxi, China* XING, a social network platform* Xing player* Qiao Xing Universal Telephone Inc....

Business (primarily Europe (Germany, Austria, Switzerland) and China) 7,000,000 Open 1,814
Xt3
Xt3
Xt3.com is a Catholic social online network established for the 2008 World Youth Day in Sydney, Australia.The name stands for “Christ in the Third Millennium and is operated by the Archdiocese of Sydney with the support of Archbishop Cardinal George Pell....

Catholic social networking, created after World Youth Day 2008 Open
Yammer
Yammer
Yammer is a microblogging service launched in September 2008. Like Twitter, it allows users to post updates of their activities, follow others' updates, tag content, and create memes...

Social networking for office colleagues 0 Must have company email
Yelp, Inc. Local Business Review and Talk 0 Open
Youmeo
Youmeo
Youmeo is a social networking website that, in addition to standard social networking features , allows its users to import data from other popular community-based websites....

UK Social Network (focus on data portability) 0 Open
Zoo.gr
Zoo.gr
Zoo.gr is a social networking and online games website, which is placed among the top 10 most visited sites in Greece , and is the largest Greek social networking site. The company was founded in 2004...

Greek Web Meeting point 890,000 Open 5,634