In this concise introduction, Peter Suber, Director of the Office for Scholarly Communications at Harvard, tells us what open access is and isn’t, how it benefits authors and readers of research, how we pay for it, how it avoids copyright problems, how it has moved from the periphery to the mainstream, and what its future may hold.
Open Educational Resources (OER) are high-quality, openly licensed, online educational materials that offer an extraordinary opportunity for people everywhere to share, use, and reuse.knowledge (Hewlett Foundation). OERs created by Cleveland State University faculty are posted in EngagedScholarship@CSU. They are also gathered into Teaching Commons, OERs from leading colleges and universities. OERs can include textbooks, course materials, syllabi and lectures.
Open-access (OA) literature is digital, online, free of charge, and free of most copyright and licensing restrictions. 
Open Access by