Sphinn is the social site for search and interactive marketers. It's
designed to allow you to share news stories, take
part in discussions, discover events of interest and network with
others.
OneRiot crawls the links people share on Twitter, Digg and other social
sharing services, then indexes the content on those pages in seconds.
The end result is search experience that allows users to find the
freshest, most socially relevant content from across the realtime web.