From the Page: Pandora is a music discovery service designed to help you find and enjoy music that you'll love. It's powered by the Music Genome Project, the most comprehensive analysis of music ever undertaken. Just tell us one of your favorite songs or artists and we'll launch a streaming station to explore that part of the music universe.

I am addicted to Pandora after only two days. I Gave it the name of three artist I liked and it
has created a truly exceptional rock station. It has only played 5 or 6 songs that i did not care for in the last two days. And even better I have discovered new music. I believe Pandora gives you a great listening experience.