Did you find a book with a BookCrossing label?



It's being likened to messages in bottles. "People are leaving books in public places for strangers to find and then tracking the book's fate online." It's predominantly an American phenomenon, but it's also occurring here and there in other countries and the tracking web site -- Bookcrossing.com -- is now "the nation's fourth most popular online reading site."



This story is from San Francisco.