These are more of your classic / folk / jam band types:

http://www.deadboots.com/
http://tela.sugarmegs.org/_asxtela/

Some others a friend sent me, I think they are techno / electronica:

http://www.freshlymixed.com/
http://www.dreamension.net/
http://www.samurai.fm/sonar/index.php

I used to have a lot more but they are dead links now.