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Open Educational Resources

General OER repositories

What is a General OER Repository? It is a collection of many different types of content.

  • Citizendium - free articles accessed on-line via a wiki and available under a license that permits reuse with attribution
  • Connexions - a place to view and share educational material made of small knowledge chunks called  modules that can be organized as courses, books, reports, anyone may view or contribute.
  • CommonSpaces - Open Educational Resources freely available to everyone
  • Creative Commons Education / OER Resources - the Creative Commons search tool, lets you lets you pick a number of image sources you want to search across.
  • Open Culture - Free educational and cultural media.
  • OpenStax CNX Library - providing authors and learners with an open space where they can share and freely adapt educational materials such as courses, books, and reports
  • CTE Online
  • Curriki (K-12) - Free learning resources for the global community.
  • Digital Public Library of America
  • Gooru (K-12)
  • HippoCampus - Repository of multimedia learning objects from NROC Project, Khan Academy, PhET, SIATech and others.
  • Internet Archive’s OER Library - a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, it provides free access to researchers, historians, scholars, and the general public.
  • IOER
  • Khan Academy - Free educational and cultural media; offers practice exercises, instructional videos, and a personalized learning dashboard
  • Knowledge to Work
  • Mason OER Metafinder (MOM) - Geroge Mason University Library OER search engine
  • MERLOt Learning Object Repository - MERLOT is a curated collection of free and open online teaching, learning, and faculty development services contributed and used by an international education community.
  • OER Africa
  • OER Commons - a dynamic digital library and network  shared with educators of all levels
  • Open Washington
  • Skills Commons - OPEN digital library of Workforce Training Materials
  • Teaching Commons - includes open access textbooks, course materials, lesson plans, multimedia, and more.
  • Wisc-Online - Learning objects, assets, interfaces and games for teaching.
  • World Digital Library - A project of the U.S. Library of Congress in cooperation with libraries, archives, museums, educational institutions, and international organizations.


Except for the PPT, this guide is adapted from the work of Lauren B. Collister at the University of PIttsburghPortland Community CollegeVirginia Tech, and UMass Amherst Libraries.

This content in this guide is licensed under a Creative Commons Attribution 4.0 License.