Buying Books on the Web

Alibris Books
Amazon Books
Bibliofind Booksearch
Powell's Bookstore-used, new, and out of print books
The Association of American University Presses Catalog
Rare and Antiquarian Book Vendors
Feminist Bookstore Network
Advanced Book Exchange
Barnes and Noble
Borders
Romance Novels
Bargain Books
Bookfinder
Shopping.com
Half.com