Open Educational Resources (OER): Multidisciplinary OER collections

A service of the California State University-MERLOT program. Include open and free textbooks, courses, course materials, open access journals and articles. Include thorough reviews by faculty and detailed accessibility reports.

This provides access to nearly 400 textbooks and includes many interactive elements. This organization has received some funding from the U.S. government.

Includes tens of thousands of learning materials, learning exercises, and Content Builder webpages for creating teaching and learning materials

An online library of OER and other freely available instructional materials

This provides access to over 3,500 textbooks and other books from 119 pressbook networks, including many run by higher education institutions. The books represent many disciplines.

A curated and carefully maintained multidisciplinary OER site from educators across the entire state of Michigan. All grade/education levels are covered from Kindergarten to Adult Education. Includes open textbooks and full courses as well as remixable lessons and activities.

Lumen has a collection of high-quality OER that can be used as-is or modified to fit students’ needs. The OER in the catalog are free, but Lumen also offers additional courseware for a fee. As of summer 2022, Lumen is transferring much of its course catalog to Course Hero, a homework help site, which, at least for the moment, continues to offer the material for free.

A free, peer-reviewed, award-winning resource for students and faculty in college-level courses that require writing and research, including composition, business writing, STEM/technical writing, and creative writing.

Offers a wide variety of interactive multimedia activities, quizzes, videos, interactive PDFs, and games to provide support for college students

An award-winning free and open multidisciplinary educational video lectures repository.

A global photo-management and photo-sharing application, you can search Flickr for photos and filter your results by license type, including the option 'All Creative Commons'.

Google's Advanced Image Search feature lets you not only put in keywords to find the image you are looking for, but it also allows you to filter your search by 'usage rights', including Creative Commons Licenses.

Includes over 12 million media files, many of which are placed under a Creative Commons license, a GNU General Public License, or another open license.

Interactive simulations in science and math from the University of Colorado at Boulder

Free and open learning materials and program support materials for job-driven workforce development. From the US Department of Labor’s Trade Adjustment Assistance Community College and Career Training (TAACCCT) program.