Open education collections feature textbooks, essays, images, and even entire courses! They are hosted by sites created to promote open education, Ivy League schools and most major universities. Creative Commons: https://creativecommons.org/Creative Commons helps you legally share your knowledge and creativity to build a more equitable, accessible, and innovative world. We unlock the full potential of the internet to drive a new era of development, growth and productivity. MIT Open Courseware: https://ocw.mit.edu/index.htmMIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity.OER Commons: https://www.oercommons.org/OER Commons is a public digital library of open educational resources. Explore, create, and collaborate with educators around the world to improve curriculum. MERLOT II: https://www.merlot.orgThe MERLOT collection consists of tens of thousands of discipline-specific learning materials, learning exercises, and Content Builder webpages, together with associated comments, and bookmark collections, all intended to enhance the teaching experience of using a learning material. Open Textbook Library: https://open.umn.edu/opentextbooks/Open textbooks are textbooks that have been funded, published, and licensed to be freely used, adapted, and distributed. These books have been reviewed by faculty from a variety of colleges and universities to assess their quality. Openstax: https://openstax.org/OpenStax breaks down barriers to knowledge and education with its free, high-quality, openly licensed textbooks integrated with personalized learning technology. And it advances students’ learning outcomes while conducting foundational research on how students learn through their use of machine learning.Open Course Library: http://opencourselibrary.org/The Open Course Library (OCL) is a collection of shareable course materials, including syllabi, course activities, readings, and assessments designed by teams of college faculty, instructional designers, librarians, and other experts. Mason OER Metafinder: https://oer.deepwebaccess.comReal-time federated search for OER content featuring a large variety of resources including the Applied Math and Science Education Library, the Directory of Open Access Books, the World Digital Library, and more.