Pandora
Pandora is a great music web site that lets you create “radio stations” of music you like to listen to. For example, if I type in “Sufjan Stevens”, it will not only play some of his music, it plays artists that are simular to him, thus introducing me to new artists. It’s also a great way to meet new Christian artists because we all know how hard it is to find good ones! 
Also, if you create an account, they don’t send you junk e-mail so your e-mail address is safe. Pandora also has an application for free for the new iphone which is great and Ben has loved it so far.
PS He said his back felt better today! Not 100%, but BETTER! Praise God!