Pandora is a online radio, streaming music site. I've heard its the best. But, never went to the site until today. First impression was unbelievable. Love the site design. I am impressed by the application. We can start by choosing a favorite artist, which in turn creates a station with similar music. I've seen this in Launch and ILike but this is real. I chose Alanis Morisette and I heard 3 other songs from other artists so far and it feels great. The project says its part of 'Music genome project'. So, I am assuming it categorizes songs by the lyrics, tones, genre and stuff.
You can start listening right away. A cool thing is, you can create an account and login on the same page while the songs continue to play.
Love it so far.