Open Educational Resources are becoming a popular at colleges to not only help cut textbook costs for their students, but also allow instructors to customize the courses they teach. Please see the list below to help you discover some of the OER's available.
Textbooks
Open Stax - Free textbooks and resources. Resources include LMS integration, powerpoints, and test banks.
B.C. Open Collection by BCcampus - curated by British Columbia universities
Textbook Equity Open Education
Teaching Commons - open educational resources from leading colleges and universities
Milne Open Textbooks - catalog of open textbooks authored and peer-reviewed by SUNY faculty and staff
Books
Directory of Open Access Books
Open Access Journal Repositories
Directory of Open Access Repositories
Approved Open Access Journals