List of Open Educational Resources and Repositories

There are tons of Open Educational Resources and Open Educational Repositories available for you to feature in your courses. If you are just beginning your OER search, review this large list of content to familiarize yourself with what is available to you. Then, utilize the OER Evaluation, Selection, and Licensing Guide to learn more about how to evaluate OERs for your course.

Table of Contents

Search Engine

The Mason OER Metafinder

The Mason OER Metafinder helps you find Open Educational Resources.  Unlike other OER repository sites (e.g., OER Commons, OASIS, MERLOT, OpenStax, etc.), the OER Metafinder launches a real-time, simultaneous search across 22 different sources of open educational materials.


AMSER (Applied Math and Science Education Repository)

The AMSER is a portal of OERs and open services designed for faculty and students in community and technical colleges.  It includes content in the Arts, Education Technology, Health, Mathematics, Science, Social Students, Vocational Education, and more. 

Blended Learning Toolkit

An OER for building your own online curriculum, download one of the Blended Learning Toolkit’s ample courses and you get a set of web templates you can load onto your own server and use as the basis for an online course.


All of Bookboon’s textbooks for students– and there are over a thousand–are completely free and can easily be downloaded in PDF format. They are all written exclusively for Bookboon by professors from the world’s top universities. 

Center for Open Educational Resources & Language Learning (COERLL)

The center is one of 16 National Foreign Language Resource Centers (LRCs) funded by the U.S. Department of Education. The overall mission of these federally funded centers is to improve the teaching and learning of foreign languages by producing resources (materials and best practices) that can be profitably employed in a variety of settings. 

DOAB (Directory of Open Access Books)

This service indexes and provides access to scholarly, peer-reviewed books and open access book publishers. The directory contains information on a wide range of subjects and content from over 500 publishers.

DOAJ (Directory of Open Access Journals)

A community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals. The directory provides articles in more than 500 subject areas.


Scientific progress is generated by collaboration, and IntechOpen believes that OER textbooks are the first step on the journey to democratize knowledge. All texts are provided with free access on all electronic devices. Subjects include Health Sciences, Life Sciences, Physical Sciences, Engineering, Technology, Social Sciences, and Humanities.

Internet Archive

A nonprofit library of millions of free books, movies, software, music, websites, and more. The archive contains 475 billion web pages, 28 million books and texts, 14 million audio recordings, 6 million videos (including 2 million television news programs), 3.5 million images, and 580,000 software programs. Books published prior to 1926 are available for download, and hundreds of thousands of modern books can be borrowed through their corresponding Open Library.

JSTOR Open Access 

JSTOR provides access to 7,000+ e-books from over 90 publishers. Users do not need to register or log in and there are no limits or restrictions on PDF downloads or printing. 


This catalog contains educational content originally curated by Boundless. In collaboration with the Boundless team, Lumen Learning imported these OER courses to the Lumen Platform to ensure they remain freely available to the education community after Boundless ceased operations. Topics include Accounting, Algebra, Art History, Economics, Finance, Chemistry, Sociology, Physics, and More

MERLOT (Multimedia Educational Resources for Learning and Online Teaching)

MERLOT is a free, curated collection of online resources designed for faculty and students in higher education. Disciplines include the Arts, Business, Education, Humanities, Mathematics/Statistics, Science and Technology, Social Sciences, and Workforce Development. This repository offers a large variety of material types including animations, assignments, case students, drill and practice, textbooks, presentations, reference materials, tutorials, and much more. 

Milne Open textbooks (SUNY Open)

Milne library Publishing at SUNY manages and maintains this catalog of open textbooks authored and peer-reviewed by SUNY faculty and staff. Subjects include but are not limited to Poetry, Biometrics, Information Literacy, Web Development and Programming, Physics, Mathematical Logic, and Writing in College. 

MIT OpenCourseware

MIT provides online publication of materials from over 2,500 MIT courses. Search by topic, courses, department, textbooks, A/V content, and supplemental resources. 

National Academies Press

This resource provides textbooks on various education studies topics, including Early Childhood Education, Education Research and Theory, Educational Technology, K-12 Education, Teacher Preparation and Professional Development, and more.

OASIS (Openly Available Sources Integrated Search)

This tool searches open content from over 100 different sources and contains almost 400,000 different content items including textbooks, audiobooks, videos, podcasts, learning objectives, simulations, and full courses and modules. OASIS is used by more than 513 institutions globally. 

OER Commons

OER Commons is a public digital library and collaboration platform dedicated to OER resources. This library provides infrastructure for curriculum experts and instructors at all education levels to identify and collaborate on OER. Subjects include Applied Science, Arts and Humanities, Business and Communication, Career and Technical Education, Education, English, History, Law, Life Science, Mathematics, Physical Science, and Social Science.