Open Textbook Network - University Libraries Washington University in St. Louis

"Washington University joined the Open Textbook Network (OTN), an alliance of hundreds of colleges, universities, and consortia partners working together to advance the use of open textbooks in higher education.  Textbook affordability is a major concern on college campuses throughout the United States and this partnership provides tools and services to assist in building sustainable open textbook programs.  OTN manages the Open Textbook Library–a premier and comprehensive catalog of open textbooks that contains over 350 open textbooks and over 700 faculty reviews of the books. The textbooks are freely available to faculty who wish to adopt them and are licensed under Creative Commons."