Got old books you'd like to sell for a little money?
BlueRectangle offers to buy them from you (at what looks to be an extremely low price, of course) and they pay the postage. It's an interesting way to get rid of a stack or two of books...assuming they want to buy your books. (I won't mention how some of my older computer book titles fared. Ahem.)
http://www.bluerectangle.com/
