Did I miss this in some other thread?

100 Free MP3s from emusic, sponsored by none other than Rio. Yeah, I know their past customer relations choices suck, but free music is free music, and you can cancel before you actually have to pay any money.

http://www.emusic.com/promo/riopromo/index.html?origin=pitch&fref=800043

Edit: This is double the number of free tracks you get otherwise.