this is an amazing site all to do with book crossing (leaving books you have read in places where other people will find them, read them, then pass them on again) Its all completely free! it gives info of books that have been left in your area for you to go and find.
inintially, i thought it was a good idea, but its a scam to make money, you leave books for people to find, and you pay for the privilage by buying labels and covers ect.
devilwoman - there are plenty of free labels to be found on the web and on the bookcrossing site itself. You do also benefit from bookcrossing because you don't just give books away, but you also get books in return. I am touched by how many people have sent me books I have wanted for ages, but couldn't get because they were out of print etc.
I love bookcrossing. I have read some fabulous books I would never have come across otherwise and met some lovely people.