Affiliation
- Yale University9
- Athabasca University8
- DOAB (Directory of Open Access Books)8
- Grand Valley State University8
- Harvard University8
- New York Law School8
- Open Textbook Library8
- University of Minnesota8
- Arizona State University7
- Chalmers University of Technology7
- OAPEN (Open Access Publishing in European Networks) Foundation7
- Pennsylvania State University7
- University of Arkansas7
- Chinese University of Hong Kong6
- Ohio State University6
- University of North Georgia6
- University of Oklahoma6
- University of Victoria6
- University of Washington6
- Cambridge University5