SXSW did something truly groundbreaking for their 2005 conference, when picked on song from each of the hundreds of bands performing at the festival online, and distributed it them with BitTorrent. If you have ever, like me, worked with clearing content from bands for online publishing, you can appreciate the amount of work this must taken!
And what a perfect music feast it is! Hundreds of songs, free and clear as mp3s. Great for us, and great for the bands I’m sure.