Bookcrossing is a community of 747,682 book lovers in nearly 150 countries who share books among friends. As the books are shared they make their way further and further (and maybe back nearer) the original owner. Bookcrossing tracks the books geographically as they migrate! What a cool idea.
You simply register the book on the site, receive a tracking number and inscribe it on your book before sending it on its way. As each new reader receives it, they simply log it into the site and eventually pass it on.
There is much more available at the site including forums, book search, reviews and comments and much more!
