There is this site called
Splinky that is made by the same guy who made
youthink.com , which is also really cool. On Splinky you can trade CD's and DVD's with people. So let's say you have some lame Fine Young Cannibals CD or something and you want a Nelly Furtado CD. Well, you just trade with someone! So you get rid of the CD's and DVD's you don't want and you get another one that you do want...very cool.