OER Commons helps educators, students, and lifelong learners avoid time-consuming searches and find exactly the right materials. With a single point of access from which they can search, browse, and evaluate resources in OER Commons’ growing collection of over 50,000 high-quality OER everyone can more efficiently find what they need.

MERLOT is a curated collection of free and open online teaching, learning, and faculty development services contributed and used by an international education community. The MERLOT Collection is made up of over 40,000 materials in 19 different material type categories.

The Teaching Commons brings together high-quality open educational resources from leading colleges and universities. Curated by librarians and their institutions, the Teaching Commons includes open access textbooks, course materials, lesson plans, multimedia, and more. The Teaching Commons is part of the bepress Digital Commons Network.

Open textbooks, syllabi, and supporting materials created under Affordable Learning Georgia OER grants. Materials are licensed under various Creative Commons licenses.

Brand New in 2023! This is the University of South Carolina's OER Platform hosted in the Scholar Commons Institutional Repository. If you are a faculty or staff member in the USC system, consider contributing your OER to this platform. Contents may include: Assignments, artistic works, lecture presentations, video recordings, textbooks, syllabi, and other educational content relevant to the collection. Contact your librarian for more information on submitting!

Massachusetts Institute of Technology is one of the forerunners in open courseware, making "virtually all MIT course content" available online for public access. This site provides access to a wide variety of courseware in diverse disciplines.

The Open Course Library (OCL) from Washington State Colleges 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.

Open source textbooks that are written by professional content developers who are experts in their fields and undergo a rigorous peer review process. All textbooks meet standard scope and sequence requirements.

The Open Textbook Library provides a growing catalog of free, peer-reviewed, and openly-licensed textbooks. The Open Textbook Library is supported by the Center for Open Education and the Open Textbook Network.

Pressbooks Directory provides an index of 5,058 primarily OER books published across 143 Pressbooks networks. Pressbooks supports educators, writers, researchers, scholars, artists, and makers with tools to create, adapt, and share content.

Milne Open Textbooks is an open access textbook publishing initiative established by State University of New York libraries and supported by SUNY Innovative Instruction Technology Grants. This pilot initiative publishes high-quality, cost-effective course resources by engaging faculty as authors and peer-reviewers, and libraries as publishing service and infrastructure.

The B.C. Open Collection is a curated selection of open educational resources (OER) that can be accessed by educators in B.C. and beyond to use in the classroom, in an institutional learning management system, or on other teaching and learning platforms. All materials are openly licensed.