* <a href="http://www.DI.fm">Digital Imported</a> - I listen to Trance, Hardcore and Classical there, great music. They have a few other stations, too.
* <a href="http://www.radioparadise.com/">Radio Paradise</a> - A truly amazing playlist, with a great forum for discussing the music. Stuff like Tori Amos, Bob Dylan, Bob Marley, Everlast... it's very eclectic, but the stuff they play is all great.
Anyone else have some favorites?