opening pandora's box....
… oh god. it’s amazing. go to pandora.com
you will love it.
in a nutshell, it helps you adventure into music you may not have heard before. all you do is plug in an artist or a song you like, and pandora will create a full radio station of songs/artists that are similar… it’s all streamed, and the quality is outstanding. i am addicted. woke up early to listen :-)