Online video analytics, also known as web video analytics, is way of measuring how viewers get to an online video

Video clip

Video clips are short clips of video, usually part of a longer recording. The term is also more loosely used to mean any short video less than the length of a traditional television program.- On the Internet :...

 and what they do when they watch it. A video is any length of video stream, such as a movie clip, video advertisement, movie trailer, television show or full-length video. Web video analytics aim to answer such questions as:

• How long did the viewer watch a particular video?
• Did they pass it along to a friend? Embed it in their home page?
• If there was an advertising overlay with the video, did they watch it? If so, for how long? Did they click through to complete a sale proposed by the ad? (a conversion)
• Where do the viewers come from that watch videos on a particular site?

In May 2008, according to comScore

ComScore

comScore is a Internet marketing research company providing marketing data and services to many of the Internet's largest businesses. comScore tracks all internet data on its surveyed computers in order to study online behavior....

, viewers watched 12 billion videos online and online video is expected to grow at nearly 40% annually through 2011, while viewership on traditional television

Television

Television is a telecommunication medium for transmitting and receiving moving images that can be monochrome or colored, with accompanying sound...

 is falling .

Online video analytics differs from traditional television analytics because it can be measured using census

Census

A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common...

-based methods instead of panel

Panel

- Art and comic books :*Panel painting, in art, either one element of a multi-element piece of art, such as a triptych, a piece of sequential art such as a graphic novel or comic strip, or a wooden panel used to paint a picture on...

-based metrics. Every event that a viewer does while watching a video online can be captured and analyzed precisely.