Open Educational Resources (OER)

  

OER are teaching and learning materials (text, media, digital, etc.) that you may freely use and reuse, without charge. OER often have a Creative Commons or GNU license that state specifically how the material may be used, reused, adapted, and shared.

American Institute of Mathematics Open Textbook Initiative

BC Campus Open Education Resources

George Mason University Metafinder

MERLOT

OER Commons

OpenStax

OpenStax CNX

Open SUNY

Open Textbook Library