- Amazon.com E-Books
- Barnes and Noble - Free Microsoft Reader e-books
- Barnes and Noble - Free Adobe Acrobat e-books
- Blackmask Online
- dotlit.com
- Fictionwise.com
- Memoware
- Mobipocket.com
- Palm Digital Media
- Pocket PC Magazine (see Media | e-books)
- Rosetta Books
- U. of Pennsylvania Online Books
- U. of Virginia E-Book Library