One of the terms that has been thrown out a lot this year is going green. Basically, this term implies being environmentally sound.
One thing that many people don't know is that most computer (and electronics, for that matter) should not simply be disposed of. There are some things that can cause contamination and all sorts of other bad things.
According to the Web site I will link you to, it's estimated that fewer than 1 in 4 Americans (less than 25%) recycle their computer components.
What can you do? Many towns locally (West Paterson, North Haledon) have free drop offs for technology. You can look these things up on Earth911 - a Web site devoted to recycling and "going green".
Earth911's computer recycling Web site:
(when you search, you want to find only "Municipal drop-offs" - those are the free ones)
Earth911's main Web site