Open Education Resource Guide

Reports from the National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine, and the National Research Council. Free PDFs.

The collection provides textbooks in Fluid mechanics, Electrical engineering, Probability, and more.
Open Textbook Library (OTL) provides 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.

Search engine for open source primary sources, text books, and other open educational materials. Mason OER Metafinder looks at 15 leading OER repositories from a single query. Maintained by George Mason University and Deep Web Technologies.

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

Search engine for open source primary sources, text books, and other open educational materials. Mason OER Metafinder looks at 15 leading OER repositories from a single query. Maintained by George Mason University and Deep Web Technologies.

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.

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.

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.