Abebooks Web address: http://www.abebooks.com/ “Abebooks, the world’s largest online marketplace for books, lists over 80 million new, used, rare, and out-of-print books from more than 13,500 booksellers.”- Website, “Company Information.” Bookfinder.com Web address: http://www.bookfinder.com “BookFinder.com is the open marketplace for books online—a one-stop ecommerce search engine where you can search through over 100 million new, used, rare, and out of print books for sale” – Website. International League of Antiquarian Booksellers Web address: http://www.ilab-lila.com/ This league “federates 20 National Associations of Antiquarian Booksellers. It speaks for 20 national associations, 30 countries, and 2000 leading booksellers throughout the world.”- Website.