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Open Educational Resources (OER)

An everevolving guide to assist faculty in finding and using OER

Search these hosts and producers of OER to find open course materials. 

OpenStax logo


OpenStax publishes high-quality, peer-reviewed, openly licensed college textbooks that are free online and low cost in print.  

Open Textbook Library logo

Open Textbook Libary

The Open Textbook Library provides a growing catalog of free, peer-reviewed, and openly-licensed textbooks.  



Openly Available Sources Integrated Search (OASIS) is a search tool that aims to make the discovery of open content easier. OASIS searches multiple sources and contains thousands of records.  

OERTX logo

OERTX Repository

OERTX Repository is a public digital library of OER for higher education in Texas.

OER commons logo

OER Commons

OER Commons is a public digital library of OER where educators can collaborate and improve curriculum. 

CC search logo

CC Search

CC Search is a tool that allows openly licensed and public domain works to be discovered and used by everyone.

BC Open Textbook logo

BC Open Textbook Collection

BCcampus Open provides access to quality open textbooks offered in a variety of digital formats.  

Milne Open textbook logo

Milne Open Textbooks

Milne Library Publishing at SUNY Geneseo manages and maintains Milne Open Textbooks, a catalog of open textbooks authored and peer-reviewed by SUNY faculty and staff.

Open Oregon logo

Open Oregon

Open Oregon promotes textbook affordability for students and facilitates widespread adoption of open, low-cost, high-quality materials. 

Galileo OER logo

GALILEO Open Learning Materials

GALILEO Open Learning Materials brings together open educational resources throughout the University System of Georgia, including open textbooks and ancillary materials.

Open Michigan logo

Open Michigan

OER from the University of Michigan that includes course materials, videos, lectures, student work, and more. 

LibreTexts Logo


The LibreTexts unites students, faculty and scholars in a cooperative effort to develop an easy-to-use online platform of OER.

Ed Tech books logo

EdTech Books

EdTech Books provides free, high-quality textbooks on an open textbook publishing platform. 

Mason OER Metafinder (MOM) logo

Mason OER Metafinder

The Mason OER Metafinder (MOM) launches a real-time, federated search for OER across 22 different sources. 

Merlot oer logo


The MERLOT system provides access to curated online learning and support materials and content creation tools, led by an international community of educators, learners and researchers.



The Center for Open Education Resources and Language Learning (CORELL) produces and disseminates OER for the internet public. 

saylor academy logo

Saylor Academy Open Textbooks

Saylor Academy is dedicated to creating open courses that include open textbooks for faculty members to adopt into their courses.

Free OER Search Engines & Repositories

Low-Cost OER Repositories & Courses

Search Tips!

In addition to using the search engines and repositories linked on this guide to find and locate OER, you can also use advanced search features when searching Google, YouTube or Flickr. You will still need to confirm the individual license of the object you select to assure it meets the appropriate CC license.

Google - Use the Advanced Search under Usage Rights select to limit your results to resources which are Free to use, modify or share. More from Google on Usage Rights.

YouTube - After searching by keyword in YouTube, use the Filters feature to filter your results to those videos with a Creative Commons License. Looking for more videos? View the Images, Audio & Video tab!

Flickr - After searching by keyword in Flickr, use the Any License filter feature to filter your results to the appropriate usage license which best suits your usage of the work. Looking for more images?  View the Images, Audio & Video tab!

Creative Commons Search - Please note that is not a search engine, but rather offers convenient access to search services provided by other independent organizations.