Instructors: Find & Use OER in Your Courses

Below are five popular tools to locate, create, and store open textbooks and resources. See the MERIT Library Open Education Resources research guide for more options and advice.

Instructors needing assistance with discovering and implementing open content are invited to contact librarians through Ask a Librarian.

Mason OER Metafinder tool

  • Searches more than a dozen large sources of open educational resources.

Open Textbook Library

  • Helps instructors find affordable, quality textbook solutions. All textbooks in this library are complete and openly licensed.
  • Includes ~170 high quality open textbooks in a wide variety of subject areas.
  • Many textbooks are reviewed by subject experts using a robust evaluation rubric
  • All textbooks are free to use, adapt, and distribute. Open textbooks can be downloaded for no cost, or printed inexpensively.
  • Textbooks can usually be downloaded in PDF format, as well as EPUB and HTML.

OER Commons

  • Provides tens of thousands of open educational resources (OER) for free to educators around the world.
  • Create, share, and discover OER in a wide variety of subjects.

Open Stax Connexions

  • Open Stax CNX is also home to 9 high-quality open textbooks including Physics, Biology, and Economics with more on the way.
  • Designed to encourage the sharing and reuse of open educational content.
  • Includes tens of thousands of learning objects called “pages” or modules which can be organized and remixed into “books” or collections
  • Authors can create pages/modules and books/collections, share their work, and adapt other people‚Äôs work


  • MERLOT is a curated collection of free and open online teaching, learning, and faculty development resources and services contributed and used by an international education community.
  • Resources are evaluated on three criteria: Content quality, effectiveness, and ease of use
  • Offers a very powerful search tool for discovering appropriate resources
  • Includes a wide variety of resource types including web sources, PDF, video, images, and much more