TagSum is a news aggregator site that takes Digg to the next level. The web site not only includes user-submitted and user-rated articles, but it is also a social networking site. Most importantly, the site centers around the tags associated with uploaded content. Submitted articles are tagged by the user, searches are conducted around tags, and TagSum believes that any member can become the go-to expert in a certain tagged field. TagSum brings the concept of tags to the social networking portion of the site as well, and encourages users to tag personal information so they can find members with similar interests.