Clay showed me this one: www.muxtape.com. You can get on, make your own .mp3 mix or listen to others. Upon an hour’s perusal I listened to a few cool remixes and made a few notes on other bands to watch out for. This site looks to be in its infancy, but is worth checking out on the strength of its original idea. I can truly see this developing into something great, or influencing other sites to include similar functionality.