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Open Educational Resources (OER)

Resources and information about open and affordable educational resources, where to find them and how to use them.

Open Educational Resources (OER)

OER are digital textbooks and other course and learning materials that are made available for use by anyone, either in the public domain or through a permissive license.


According to the Bureau of Labor Statistics, the average cost of a textbook increased 135% since 2001 through 2016-2017*, and then the average price started to fall due to competition from used book sales, rental programs, and OER**. Used books and rentals still cost money while OER don't cost them anything; as many students pay for textbooks with student loans, the use of OER therefore helps to defray costs for students.

Additionally, the ability to adapt the material gives professors more control over the materials they use in class, letting the textbook fit the course instead of the course fitting around the textbook.

OER have been put into use in schools large and small, public and private. Here you'll find collections of OER by type and source, as well as news about OER initiatives all over the U.S.


Where to Find OER

Open Educational Resources are available from a broad range of educational institutions and other organizations across the country and internationally.

SUNY Geneseo's Milne Library has developed the Openly Available Sources Integrated Search (OASIS) tool to make finding things easier, and it searches more than 100 sources for OER content.

There's a lot out there! Here's a good way to think about OER as you find them: