- Alibris
- Amazon.ca
- Amazon.co.uk
- Amazon.com
- Amazon.de
- ANSI
- Audible
- BetterWorld.com
- BiggerBooks.com
- BookCloseouts.com
- BooksAMillion
- Brian Tracy
- CDUniverse.com
- CengageBrain.com
- chapters.indigo.ca
- DIRECTV
- Discounted Newspapers
- Disney Store
- Earphone Solutions
- eBooks.com
- Free Trade Magazines
- HBO Store
- PhatCampus.com
- Prima Games
- RDstore.com
- RiffTrax.com
- Scholastic Store
- SecondSpin.com
- Textbooks.com
- TFAW.com
- TimeLife.com
- ValueMags.com
- World Book Store
- Zinio Digital Magazines
