bookcrossing

“The idea came to Ron back in March of 2001, as he and his wife Kaori were admiring the PhotoTag.org site, which tracks disposable cameras loosed into the wild. He already knew about the popularity of WheresGeorge.com (which tracks U.S. currency by serial number), and that got him thinking: what other physical object might people enjoy tracking? A few minutes later, after a glance at his full bookshelf, the idea of tracking books occurred to him.”

Check bookcrossing.com!