Do you Paperbackswap?

I do!

I honestly can't tell you how it got started.  I probably just read about it a few years back and went from there.  It's very simple.  After you join, post 10 books that you don't want or no longer need.  You will receive 2 credits after you post, which you can use to request books you want from other members.  How do you get more credits?  Members will (hopefully) request one of the books you posted, and after they receive it you will get a credit.  

This site helped a LOT when I was trying to complete my BSC collection.  I was able to find some of the more rare books that don't usually turn up in thrift stores or used book shops.  Keep in mind that you are responsible for paying postage when you send a member one of your books, but media mail doesn't cost much.  Also keep in mind that when you request a book from another member, that person is responsible for the cost of mailing it to you.  So, it all sorta balances out.

Because of our upcoming move, I am trying to clean out some of the books we no longer need.  Anything to lighten the amount of stuff we have to take with us!  Please take a look at my bookshelf, and see if there is anything you want!