Books
- Academic Info Bookstore
- Browsing and searching capabilities for academic books
- Add All-Book Search and Price Comparison
- Book search and price comparizon
- Alibris
- Worldwide bookseller
- All Bookstores
- Allows for price comparizon on new and used books
- Amazon
- Online retailer of books
- American Booksellers' Association
- Not-for-profit trade association of independent book sellers in the United States
- Barnes and Noble
- Allows for price comparison of other online book retailers
- Best Book Buys
- Books retailer
- Book Finder
- Open marketplace for books
- Books and Periodicals Online
- Directory of sources for global news, business, legal, scientific and medical information
- Book Sale Finder
- Guide to used books events
- Bunches of Books
- Used books reseller
- Business and International Trade Online Bookstore
- Maintained by the U.S. department of commerce
- Business Publications
- Search engine for business publications
- City of Books
- Used and new books reseller
- College Books Direct
- Specializes in textbooks
- Directory of Open-Access Journals
- Directory of free journals on a variety of topics
- E-Campus
- New and used textbooks
- FetchBook-New and Used Books
- Reseller of books
- Intellect Books
- Independent books publisher
- National Academies Press
- Maintained by the National Academies of the United States by the act of Congress
- National Bookstore
- Maintained by the National Academies of the United States by the act of Congress
- Sasuga Japanese Bookstore
- Japanese retailer of books
- Textbooks Superstore
- Resale of used textbooks
- Txtbook.com
- Professional and technical textbooks
- U.S. Government Online Bookstore
- Reseller of the U.S. Government publications