Today I joined PaperBack Swap. It's easy. Sign up with an email address, a username and a password, then create a list of books you would like to swap with other members. When a book is requested, you mail it to that member; in return, you may choose from over five million available books. The books you request are mailed to you for free, and they are yours to keep. With your first list of ten books, you receive two credits that you can use to request your first two books; I have already ordered mine. I think this will be a great way to keep my shelves cleared of unwanted books and to satisfy my appetite for new reading material without breaking the budget.
If you decide to give it a try, please use my name as a referral and I will receive even more credits! Thanks, and let me know what you think!