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Looking for open textbooks or other high-quality OER? These key resources are good places to start:
A portal for teaching and learning materials around the world.
Offers free peer-reviewed textbooks written by professional content developers.
An OER repository is an aggregator of resources that can be searched and accessed from a centralized portal. They contain free, open source, creative commons licensed, or public domain educational material. This list is not ranked and their usefulness may vary depending on your specific disciplinary needs.
Creative Commons Search
Search a variety of media.
A free academic web site that delivers rich multimedia content--videos, animations, and simulations--on general education subjects from middle-school to college level.
MERLOT is a free and open peer reviewed collection of online teaching and learning materials and faculty-developed services contributed and used by an international education community.
A web-based publication of virtually all MIT course content. OCW is open and available to the world.
NCLOR (North Carolina Learning Object Repository)
Provides a guest login. As a guest, you will only have access the items in the collections that have been made available to the public.
NSDL (National Science Digital Library)
Digital resources and collections supporting science, technology, engineering, and mathematics (STEM) education.
Open Course Library
A collection of high quality, free-to-use courses that you can download and use for teaching. All content is stored in Google docs.
Open Professionals Education Network: Find OER
Find openly licensed media elements to use within your courses.
View and share educational material in small modules that can be organized as courses, books, reports or other academic assignments.
Interactive, research-based simulations of physical phenomena for free.
Shareable Online Learning Resources created by BC post-secondary educators. BCcampus
Small, high quality digital library of Web-based learning resources.
The links below are open resources mega sites that offer open textbooks as well as other OER teaching tools.
Online catalogue and reviews of books that have been made available for free by the author with a focus on books about math, science, and computers.
Athabasca University Press dedicated to publishing refereed open access digital journals and monographs with a focus on Canada, the North American West, and the Circumpolar North. Includes fiction and non-fiction, as well as alternative and experimental literary forms.
Chemwiki (Chemistry Libre Texts)
An open access textbook environment under constant revision by students, faculty, and outside experts. The LibreTexts project is currently directed by UC Davis Professor and project Founder Delmar Larsen.
College Open Textbooks
A collaborative that peer-reviews open textbooks for community college courses and identifies others for consideration.
Community College Consortium for Open Educational Resources
Search for open textbooks by discipline that may be suitable for community college courses.
The Global Text Project
A project started by a graduate class at the University of Georgia to publish open content electronic textbooks that are freely available on the web.
A not-for-profit organisation bringing libraries together to provide open access books.
Open textbooks in Psychology that can be customized or built from scratch from content licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Contains freely accessible academic books mainly in the area of humanities and social sciences.
OER Commons: Open Textbooks
A repository for open resources. This page links to their open textbooks licensed under Creative Commons.
Ohio Digital Bookshelf Project
A pilot project of Ohio Textbook HQ to "provide quality textbook options for faculty and better learning outcomes, while also saving students money."
Open Book Publishers
Founded by academics at the University of Cambridge, Open Book Publishers provide free online editions os textbooks that can also be published in hardback, paperback, pdf and ebook editions.
Open SUNY Textbooks
An open access textbook publishing initiative that engages "faculty as authors and peer-reviewers, and libraries as publishing service and infrastructure."
Open Textbook Library
Freely available textbooks that have been reviewed by faculty from a variety of colleges and universities that can be downloaded for no coast, or printed at low cost.
Large collection of eBooks in the Public Domain because the copyright has either expired or the copyright holder has given explicit permission for unlimited non-commercial worldwide use. Contains many classic works of literature.
Student-run website with links and reviews of textbooks and other educational resources. Includes a mix of ebooks, PDF files, websites, and multimedia learning objects.
A collection of open-content textbooks that anyone can edit.
Courses and materials for learning
There are growing numbers of open courses available online for students to explore. As well, open educational resources can provide students with supplemental materials for their courses.
An education platform that partners with top universities and organizations worldwide, to offer courses online for anyone to take, for free.
Offers interactive online classes and MOOCs from MITx, HarvardX, BerkeleyX, UTx and many other universities.
Interactive exercises, videos, and assessments in math and sciences (primarily K-12 but useful as review tools for undergrads). Donor supported, not-for-profit.
Open Yale Courses
Free and open access to a selection of introductory courses taught by distinguished teachers and scholars.
A web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity.
With so many freely available resources online, choosing OER can be overwhelming. This Faculty Guide for Evaluating Open Educational Resources contains some suggestions for instructors when choosing resources for use in the classroom.