Music?

OK, this is one of the coolest musical things I've come across. Pandora has been around for a while but now it's free.

You enter the name of one song or artist that you like, and it uses... The Force? Divination? ESP? I'm not sure what exactly, but it finds other music that is similar to what you like in construction. It seems to work pretty well.

I think it's very cool, and I like the intferface functionality.