An open source music library and player that organizes your music and allows you access to it online. Set up accounts for your friends to listen, and they can create their own playlists. Uses APIs from Last.fm, Lyricsfly, LyricsWiki and YouTube.
obsvr.net is an Aggregator and One Stop Search for the latest user generated media on a given topic.
It searches most of the popular foto-, video- and document- sharing sites on the web at once!