I think it's great, and if you think about it, the cost of shipping a book is way less than buying the book you want brand new anyway. Add to that the fact that there's no money involved (I always get nervous when shopping online - there are so many stories of identity theft out there!) and that you don't have to pay to use the website, and you have a recipe for happy reading.
Check it out, and let me know if you've used the site before!
----> www.bookmooch.com <----