AAABookSearch.com: Compares prices at 44+ online bookstores.
Abookbargain.com: Compares prices including shipping costs.
AddAll: Compares prices among 41 on-line bookstores, including used and out of print titles.
AKABook: Offers price comparison and search for new and used books, textbooks and DVDs.
AllBookstores.com: Compare prices at over 30 online bookstores by title, author, ISBN, or keyword.
AllDiscountBooks.net: Compares prices from online retailers in US, UK, and Canada.
Any Book For Less: Compares prices at 22 online booksellers, including delivery to US, Canada and UK.
Best Book Deal: Compare prices at 47 online bookstores. Calculates tax and shipping cost.
Best-of-the-World.com: Compares prices and shipping for new and used titles.
BookButler: Compares prices at up to 40 stores.
BookCost.com: Compares prices at several online retailers, and displays current coupons available.
BookFinder.com: Book shopping search engine, plus a meta search of 12 directories of used, rare, and out of print booksellers.
Bookfinder.US: Offers book search and price comparison at over 60 sites. Search by title, author, keywords and ISBN number.
Bookfinder4u.com: Compare prices among online bookstores worldwide.
BookHQ: Provides free listings, and searches new and used prices from ten bookstores.
Bookkoob: Compares prices at US and UK online stores.
BookPricesOnline.com: Compares prices at online booksellers.
BooksPrice.com: Compares prices of several books together.
Campusi: Pricing search engine reviews over 40 online stores for new and used books, and locates coupons if available.
Chambal.com: Compares prices across online bookstores.
Compare Shop Books: Gathers prices from about eight booksellers.
Compricer.com: Finds and compares prices for shops in several countries.
Fast Book Finder: Searches by title, author, or isbn and compares prices among online booksellers.
FetchBook.info: Compares new and used prices among multiple book stores.
Get Cheap Books: Searches and compares prices at eight online bookstores. Includes used and out of print titles.
GetTextbooks.com: Price comparison search engine.
ISBN.nu: Compare prices at several online bookstores by ISBN, author, or keyword.
PowerBookSearch.com: Performs price comparisons of online retailers.
Price Owl: Searches book stores and lists prices.
PriceViewer.com: Searches and compares prices at major online book stores.
The Cheapest Book: Searches US online bookstores and compares prices.