All of the repositories on this page have been assessed with a top score using the Open Education Resource Repositories (OERR) Rubric. The assessment process is ongoing and this page will be updated as new OERR's are added. Click here to see the full list of assessed OERRs.
Note: check the licenses of any OER materials before using — every effort has been made to identify repositories that prioritize open and reusable content, but licenses may vary.
Unlike libraries, where content is evaluated and curated from a set of items identified through publishers, open education resources can be found everywhere and anywhere and have no set form of evaluation before they are made available to the public. The following guide provides you with processes and tools for developing a open education resource research plan and evaluation considerations for resources:
OER Commons aggregates Open Education Resources (OER) from a large number of partnership organizations and institutions. Resources are available in every subject area and a large variety of formats (including lecture notes, lesson plans, case studies, full courses, textbooks, and more).
Academic Earth aggregates free online courses from a number of prominent academic institutions. All subject areas are included. Most resources are video lectures/tutorials or links to open courseware (OCW) courses.
Yale Open Courses is Yale's OCW with full courses from a variety of subject areas (mostly liberal arts). Each course includes a full set of class lectures (downloadable, with audio-only versions available, and searchable transcripts included), as well as supplementary course materials such as syllabi, supplementary readings, and problem sets.
Khan Academy offers instructional videos and practice exercises in all subject areas, with a heavy emphasis on math skills. Other subjects include science, computer programming, history, art history, economics, and more. (Note: Personal non-commercial use only; Khan Academy does not allow derivatives or adaptations and retains all copyright licensing.)
Saylor Academy contains 300+ self-paced, free courses that are built by professors and industry professionals, some of which are peer reviewed by Saylor Faculty. All courses contain learning outcomes, course information, and use a variety of learning objects, articles, and open textbooks that are freely available online. All subject areas are represented.
The Multimedia Educational Resource for Learning and Online Teaching (MERLOT) is a repository of over 40,000 learning materials, including websites, open textbooks, online courses, tutorials, and interactive resources. All materials are reviewed for relevance and all subject areas are represented. By creating a free account, users can also create Bookmark Collections and Course ePortfolios.
Carnegie Mellon University’s Open Learning Initiative (OLI) includes 23 full courses in a variety of disciplines such as statistics, physics, engineering, writing, and languages, with a focus on first year university concepts. The courses are broken into modules and include quizzes and practice problems.