The Economist writes about eBay’s initiative in this area:
eBay, the world’s leading online auction business, has come up with an innovative way to encourage people to sell, donate or recycle their old machines over the internet. A web-based program reads the redundant computer’s components and gives its specifications (like its memory and processor speed). Owners can then ascertain the value of their old PC, put it up for sale and get a special mailing kit to simplify shipping. The site also makes it easy to donate a PC to charity or get it to a nearby recycler.