Openwhyd - Collect and Share the tracks you love.
Zoff - Collaborate on a live music and video playlist with your friends.
Tunit.fm - the largest FREE music listening platform on the planet.
SoundClick - SoundClick is a music-based social community.
Tenory - Social community for discovering and sharing everything about music.
FoxTube - Play YouTube video continuously with playlists. FoxTube features: