AddAll: Book searching and price comparison. I've used them many times and saved a good deal of money by doing so. It ranks books by cost of book plus cost of shipping. It also does used book searches.
Advanced Book Exchange: Bills itself as "World's Largest Source of Out of Print Books - Over 5300 Booksellers - 15 million titles listed."
Amazon.com: A huge selection of in-print books. They now have so-called Z-shops, where independent booksellers offer out of print books. For example, I searched for Marion Zimmer Bradley's The Firebrand, which is currently out of print, and came up with eight booksellers offering copies at varied prices.
Barnes&Noble.com: A very large stock of new books; also a used book search feature.
Bibliofind: "More than ten million used and rare books, periodicals and ephemera offered for sale by thousands of booksellers around the world."
Bookfinder.com: "This is a book shopping search engine that scans bookseller databases to find new, used, rare, and out of print books."
Half.com: a listing of over three million used books, many at very attractive prices. According to the site, it is being acquired by eBay. A great place to look for out of print paperbacks.
The Online Books Page:
From U. Penn. Lists over one million free e-texts of books on the Internet and all sorts of interesting information about online books.
Powell's Books: "The largest used and new bookstore in the world." Many copies of out of print books at various, fair prices.
Troy Main Page | Course Main Page