Find Materials Looking for free and open online materials for your courses? free and open Course Materials free and open eTextbooks free and open Online Courses free and open Access Journals & Articles Faculty Showcases Looking to learn how your colleagues are using free and open eTextbooks? Accessibility Looking for accessibility evaluation methods for digital textbooks? Community Explore other organizations in the OER community and connect with their members! The three State of California systems of higher education are working together to provide access to FREE and OPEN eTextbooks. (Learn more about the history of COOL4Ed.)