OER Commons
OER COMMONS--Need a great source for an OER that is linked to Common Core? You just found it! Search by grade and subject.
GA Virtual OERs
A great open education resource is found via our own Georgia Virtual School.
MIT OER
MIT also shares a plethora of Open CourseWare for High School.
JOHNS Hopkins OCW
Another great site for sharing among colleagues.
Yale OCW
Yale also offers Open Courses.