Forgotten bookmarks

"It's happened to all of us: we're reading a book, something interrupts us, and we grab the closest thing at hand to mark our spot. It could be a train ticket, a letter, an advertisement, a photograph, or a four-leaf clover. Eventually the book finds its way into the world-a library, a flea market, other people's bookshelves, or to a used bookstore. But what becomes of those forgotten bookmarks? What stories could they tell? By day, Michael Popek works in his family's used bookstore. By night, he's the voyeuristic force behind www.forgottenbookmarks.com, where he shares the weird objects he…