StumbleUpon offers auto discovery of online videos
StumbleVideo ( www.stumblevideo.com ) provides a way to watch a stream of videos from popular video sites YouTube, Google Video and MySpace that are automatically matched to individual interests.
While online video search systems have proliferated over the past year, discovering what to watch typically depends on simple popularity rating systems or text searches that count on the user guessing what terms were used to label the video.
"What we realised is there is no great way to discover personally relevant videos," David Feller, Stumble's vice president of marketing, said in an interview.
StumbleUpon relies on the ratings of Web sites, photos and videos from a growing network of 1.65 million registered users, who are encouraged to rate items by clicking on a simple "thumbs up"/"thumbs down" recommendation system.





















