DealOz.com - Save time. Save money. Discover. Search new and used books, textbooks, and ebooks using the most trusted shopping comparison site, DealOz.com.
Occupy the Bookstore - Chrome extension to easily surface cheaper textbooks
AbeBooks - AbeBooks has millions of new & used books, rare books and out of print books.
Bookfinder - Find nearly any book: new, used, rare and textbooks.
SlugBooks - SlugBooks is the only eCommerce company that truly streamlines the bookselling process for teachers, tutors, and professors.
BetterWorldBooks - New & Used Books for Sale, Textbooks, Book Reviews & more - FREE SHIPPING