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These search engines are a great place to start your OER search, especially if you're not tied to textbooks. They search across a variety of OER collections, databases, and repositories to make your search a bit easier.
Provides a simultaneous search across 20 different sources of open educational materials. Created by George Mason University.
|The Open Textbook Library includes 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 offers students free textbooks that meet scope and sequence requirements for most courses. These are peer-reviewed texts written by professional content developers.|
Open SUNY Textbooks is an open access textbook publishing initiative established by State University of New York libraries.
|BCcampus Open Education offers a collection of hundreds of open textbooks created by faculty at academic institutions in British Columbia.|
Collection of open books and textbooks from a variety of sources.
Open textbooks for the 40 highest enrolled first- and second-year subject areas in the British Columbia's public, post-secondary system.
A collection of expertly developed educational materials – including textbooks, syllabi, course activities, readings, and assessments – in 81 high-enrollment college courses
OER Commons, or Open Educational Resources Commons contains full courses, modules, syllabi, lectures, homework assignments, quizzes, lab activities, pedagogical materials, games, simulations, and more.
Multimedia Educational Resource for Learning and Online Teaching (MERLOT) is a free online community of resources designed primarily for faculty, staff and students of higher education. Most, but not all, Merlot resources are Creative Commons licensed.
|Teaching Commons brings together OER that have been curated by librarians at colleges and universities throughout the US.|
|LibreTexts contains course shells, textbooks, interactive models, laboratory experiments, and ancillary materials.|