Turntable.fm, A Clever Social Music Site Lets Users Play DJ

Turntable.fm is a devishly clever social music site where users act as DJs, selecting music that plays in a chat room populated by other users. DJs earn points based on the popularity of the music they choose. As of this writing, Turntable.fm is currently in closed beta–only those individuals cool enough to already have a Facebook friend using the service may join. Adrianne Jeffries has a great write up on Betabeat about the burgeoning start up.