The Multimedia Education Resource for Learning and Online Teaching (MERLOT) is a curated collection of free and open online teaching, learning, and faculty development services used by an international education community.
Part of the U.K.'s Open University, "OpenLearn aims to break the barriers to education by reaching millions of learners around the world, providing free educational resources and inviting all to sample courses that our registered students take – for free!"
"Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more...Our mission is to provide a free, world‑class education for anyone, anywhere."
"panOpen is a platform that enables mainstream institutional adoption of Open Educational Resources as an alternative to commercial textbooks. It provides faculty with turnkey peer-reviewed content, tools for customization, assessment, and analytics, allowing faculty to lower costs."
"Lumen Learning courseware helps improve educational access, affordability and student success, simultaneously. Co-founded by open education visionary Dr. David Wiley and education technology strategist Kim Thanos, Lumen is dedicated to facilitating broad, successful adoption of OER."