I found http://di.fm http://di.fm really good but I'm using http://grooveshark.com http://grooveshark.com more these days at the recommendation of a colleague.

I found http://di.fm http://di.fm really good but I'm using http://grooveshark.com http://grooveshark.com more these days at the recommendation of a colleague. Grooveshark has both radio stations and the ability to pick 'n choose the music.