www.bookcrossing.com Make the World a Library! Help Spread the Words! What is BookCrossing, you ask? It's a global book club that crosses time and space. It's a reading group that knows no geographical boundaries. Do you like free books? How about free book clubs?. Well, the books our members leave in the wild are free... but it's the act of freeing books that points to the heart of BookCrossing. Book trading has never been more exciting, more serendipitous, than with BookCrossing. Our goal, simply, is to make the whole world a library. BookCrossing is a book exchange of infinite proportion, the first and only of its kind.

http://bookcrossing.tribe.net