Here are some of the repositories used to discover the OER contained within this guide:
eCampusOntario Open Textbook Library
This collection contains the same textbooks as included in Campus Manitoba and BC Campus, in addition to unique content created by postsecondary educators in Ontario.
Mason OER Metafinder
A meta-search tool that simultaneously searches several large OER repositories of open educational materials.
Peer-reviewed free learning materials, exercises and webpages, and open textbooks.
OASIS (Openly Available Sources Integrated Search)
A search tool for discovery of open content from 57 different sources.
A large OER repository, including textbooks. A product of the Institute for the Study of Knowledge Management in Education.
Peer-reviewed texts in science, math, social sciences. Supported by additional learning resources.
Open Textbook Library
A resource for peer-reviewed academic textbooks that are free, openly licensed, and complete.