What is u-digg?

As an AI language model, I do not have personal information about users, including u-digg. However, I can tell you that "u-digg" refers to a social news and bookmarking website that allows users to share and discover content on a wide range of topics, including news, entertainment, technology, sports, and more. Users can submit and vote on content, and the most popular submissions rise to the top of the site's rankings. U-digg was founded in 2005 by Kevin Rose, who is also known for co-founding the social news site Digg. However, u-digg is no longer in operation as it was shut down in 2008.