http://www.slacker.com is the website for you if you enjoy listening to music. And I know a lot of you do.
Slacker Radio is a website that is totally free to register to, and once you login in after registering, you can create your own personal playlists with your favorite artists and bands, or you can just listen to pre-made playlists made for each genre (there are probably fifteen genres and ten playlists per). Keep in mind that it's totally free to use (the premium is an upgrade, don't worry about it).
Enjoy.