Conceived, designed, written and administered by John Buckman, BookMooch is growing quickly. Right now the site has approximately 5,800 members and 45,000 books available for mooching.
BookMooch is based on a points system. Users gain points by listing books (0.10 per book) and by granting mooch requests (1 for domestic, 3 for international). They can use those points to mooch books from other members (1 point for domestic, 2 for international).
The best things about the site:
~ the book selection
~ it encourages international trading
~ it gives back by partnering with a number of different charities
So far I've mooched six books and had three books mooched from me. It's been a great experience.
Check it out and see what you think!
Here's a link to my inventory ;)