Where are all the hottest super-angels and startup founders these days? Little did I know, they’re hanging out spinning tunes in the super-stealthy new startup, Turntable.fm. It’s a little like an RPG in form, a social network in function, and a music discovery service like Pandora with the ability to share your own favorite music. Essentially, it makes listening to and discovering new music a truly social experience.

If that idea pretty defines the perfect music service for you — just wait until you experience it. Right now, Turntable.fm — founded by Seth Goldstein and Billy Chasen — is in private alpha and the only way to get into the party is to know someone else who is in. If you’re friends with someone on Facebook who’s already enjoying tracks on Turntable.fm, just connect with your Facebook and check out one of several rooms where “DJs” are sharing their favorite music with others in the room. (In case you’re wondering, Turntable.fm has covered all its legal bases and licenses all music played via MediaNet.) Guests in the room can opt to join and DJ, or just discover new music and chat with everyone else. Users can suggest music for the DJs to spin, chat about related music or just trash on each other. If you don’t like what you hear or want to create a room for just you and you friends, you can start your own room and make it public, or private.

turntable music network by seth goldsteinSomehow, I knew someone and stumbled into a room where Seth Goldstein was spinning a track by DJ Shadow, who he says is a local in Mill Valley. And yes — there are rooms, which are like interactive playlists, complete with avatars that can dance when you vote on the DJs selection. Moments later he then chose a track by Sage Francis, which I had never heard of but wanted to remember for later. I was about to literally write it down, but Turntable.fm features several social sharing functions — such as the ability to add any track you like to iTunes, Last.fm, or Spotify. If you want to DJ, you can add the song to your queue to play later on Turntable.fm for others. Of course, there are the typical social network options like the ability to tweet about your room on Turntable.fm, too.

Turntable.fm is just getting the party started, but Seth hinted at one thing in store for the future while DJing in one of the rooms recently — there will eventually be an iPhone app, and the app will feature the ability too collab-DJ at a party. If you want to check out Turntable.fm, you’ll want to know someone who’s already using Turntable.fm on Facebook. You know where to find me.