Make marketing your music fun and exciting.

Turntable.fm is a startup that’s already managed to accrue more buzz than that band you hate — you know, the one that stole your sound and is now going on tour while you’re stuck at home, reading things (like this) on the Internet.

Turntable.fm is basically akin to AOL chatrooms of old — with music. Right now, it’s invite-only (and U.S.-only), but if you have a friend on Facebook who’s already using it (you likely do), you’ll be able to get access. Around 300,000 people already have.

Once you have an account locked and loaded, you can start checking out DJ rooms (and creating them, but we’ll get to that later), where users take turns manning the decks and spinning songs via MediaNet or by uploading MP3s. Other users rate music as “awesome” or “lame,” which garners a DJ points and, consequently, access to cooler avatars.

Sound fun? It is. — and about as addictive as chocolate-covered, deep-fried crack cocaine. And while it’s totally OK to mess around with the service as a casual user, we think there’s a huge opportunity here for bands to promote their own music while having that aforementioned fun.

Check it out at Mashable