If you don't already know about this, you should.
Camp Bisco is the only annual Music Festival devoted primarily to live electronic/dance music. Past lineups have included well known acts such as Snoop Dogg, Umphrey's McGee, Lyrics Born, Brazilian Girls, Infected Mushroom, and lots and lots of glowsticks.
Founded by the Disco Biscuits, who do a great job of bringing together many different acts within this expansive genre, the festival has been noted mostly for its size, which had remained only several thousand people since its inception. And it is in part because of the small size of this festival, that you don't see too many recurrent acts outside of the few 'regulars' (The Disco Biscuits, STS9, etc). This means that the guys in charge save a few slots for the better known artists (this year Nas & Damian 'Junior Gong' Marley), and pack the rest of the slots with up-and-coming acts.
This year it seems to be moving away from the livetronica trend of just two years ago, and more towards a plethora of djs and hip-hop artists. My favorite memories of music festivals are checking out bands I'd never heard before, and falling in love. I expect to do this multiple times two weeks from now, and I hope you'll join me in at the Hell's Angel's Indian Point Country Club in Mariaville, NY on July 16th through the 18th.