BookCrossing | Online community
The idea behind BookCrossing is pretty simple — you release a book into the ‘wild’ by leaving it somewhere. Inside you leave a sticker (printable from the website) with a short explanation and a code to input into the site. The person who finds the book reads the explanation and (hopefully) visits the website and puts the code in, telling the website that they’ve got the book. Then they read it and leave it somewhere else. Over time the book travels around (some books have visited many countries) and its journey can be tracked via the website. Pretty cool.