Apple Thoughts: Recycle Your Old Apple Computer and Get Some Cash for the Effort

"Apple's commitment to the environment includes finding the most efficient ways to reuse or recycle electronic equipment, including computers and displays from any manufacturer."

Well, not exactly cash but you do get an Apple Gift Card for your trouble via the recycling program set up in conjunction with PowerOn. You can find more details at the exchange website via the Apple Store. Basically you input your details from your old computer, laptop or desktop, and they will tell you the amount you will get in the way of an Apple Store gift card. Pretty simple. Oh and they also do non-Apple displays if you have any of those laying around.