Openwhyd - Collect and Share the tracks you love.
BeatSense - Discover great music hand-picked by real people, in a single click. FREE and in real-time!
Tunit.fm - the largest FREE music listening platform on the planet.
Twinjack - Stream Spotify music with anyone with just a link
Tenory - Social community for discovering and sharing everything about music.
Quorus - A new way to listen to music through collaboration