OER Commons
over 50,000 high quality OERs including full courses by the ISKME and endorsed by SCTCS with a community and technical college level search option
Open Course Library
collection of free courses and materials funded by the Bill & Melinda Gates Foundation and managed by the Washington State Board for Community and Technical Colleges
MERLOT
more than 40,000 peer-reviewed OERs including entire courses are in this collaborative collection by 23+ international education institutions and systems
MIT Open Courseware
publication of virtually all MIT course content available free to the world
Carnegie Mellon Open Learning Initiatives
offers courses and courseware to further the mission of improving higher education
Galileo Open Learning Materials
open courses and supporting materials created under Affordable Learning Georgia OER grants
Academic Earth
aggregation of open courses developed at 25 universities
Class Central
search thousands of universities and providers of open courses by subject
MOOC List
searches the internet for open courses available in the next 30 days
Open Culture
browse thousands of open courses and certificates
Saylor Academy
non-profit organization with 100+ free and open college and professional level courses
Khan Academy
non-profit organization "providing a free world-class education for anyone anywhere"
Coursera
education company that partners with universities and organizations to offer many free courses and certifications
Internet Archive OER
free courses, video lectures, and supplemental materials from universities in the U.S. and China