Jango

 Just type in an artist – and your first station starts playing right away. You’ll get the music you looking for, along with similar favorites of Jango users who share your taste. Customizing your stations further is just as easy. Just add artists and rate the songs that you want to listen.

http://www.jango.com/

What’re they saying about Jango:

• pcadvisor

• techcrunch

• patchworkplanet