have some old school bookmarks with your URL on it printed. Sneak (thats the sneaky part) into your local library and slip those bookmarks into the booksDisadvantage: If you get caught they make you mob the floorso it might be actually a good idea to approach them officially and strike a dealThis could work if your target market matches in some way the library clientele e.g. students, school kids (all those poor folks who dont own an ebook reader or IPAD LOL)
