Did you all see the link dulcimer42 listed in the read a good book thread? Paperbackswap dot com. You list ten, get two points, choose your first two books. Whoever has them, which you've chosen from a list, then mails them to you, they pay the postage. Then others ordered the ones you've listed and you pay the postage. They even have a wrapper you can print out and mail the books right from your home. Seems a pretty neat and easy idea. And, it's not just paperbacks. They also have a site for CD and DVD swapping.