Topwinkels voor Leerboeken
- Wordery
- knetbooks
- Quinnipiac University Bookstore
- RedShelf
- CNM Bookstore
- eCampus
- CSUEB Bookstore
- Biblio
- University of Oklahoma Bookstore
- Bigger Books
- GW Bookstore
- Cokesbury
- Wake Forest Bookstore
- ValoreBooks
- Matador Bookstore
- TextbookX
- Abbey's Books
- Thrift Books
- eFollett
- Boston College Bookstore
- AbeBooks
- Ignatius Press
- Bibles.com
- Alibris
- Alibris UK
- SellBackBooks
- Chegg
- Rio Salado College Bookstore
- AbeBooks UK
- James Madison University Bookstore
- Books-A-Million
- Arizona State University Bookstore
- Booktopia
- Stanford Bookstore