UrbanBaby is a New York-based Internet forum

Internet forum

An Internet forum, or message board, is an online discussion site where people can hold conversations in the form of posted messages. They differ from chat rooms in that messages are at least temporarily archived...

 devoted to anonymous discussion of urban motherhood founded in August 1999.

The site had employed David Karp

David Karp (entrepreneur)

David Karp is an entrepreneur living in New York City. He is the founder and CEO of the short-form blogging platform Tumblr. In 2010, he was named to the MIT Technology Review TR35 as one of the top 35 innovators in the world under the age of 35.-Early life and education:Karp grew up on the Upper...

 as a software consultant before he went on to found Tumblr

Tumblr

Tumblr is a website and microblogging platform that allows users to post text, images, videos, links, quotes and audio to their tumblelog, a short-form blog. Users can follow other users, or choose to make their tumblelog private. The service emphasizes ease of use. The site ranks as the 10th...

 using his earnings from (and experience gained during) his time at UrbanBaby.

A similar site in Japan is the Yomiuri Shimbun

Yomiuri Shimbun

The is a Japanese newspaper published in Tokyo, Osaka, Fukuoka, and other major Japanese cities. It is one of the five national newspapers in Japan; the other four are the Asahi Shimbun, the Mainichi Shimbun, Nihon Keizai Shimbun, and the Sankei Shimbun...

's Hatsugen Komachi.