Explore Cornell
http://www.explore.cornell.edu/
"Explore Cornell is a multimedia magazine dedicated to Cornell University research, instruction, and facilities. The mission is to increase public access to the university's most valuable asset: knowledge." Contains articles on home gardening to 3D representations of items in the Watson Collection of East Asian artifacts.

LionShare
http://lionshare.its.psu.edu/main/
LionShare facilitates "legitimate file-sharing among individuals and educational institutions around the world."

Apple Learning Interchange
http://ali.apple.com/
Designed to support educators, API contains lesson plans and examples of students projects.

Blue Web'n
http://www.kn.sbc.com/wired/bluewebn/
Blue Web'n is an online library of 1998 outstanding Internet sites categorized by subject, grade level, and format (tools, references, lessons, hotlists, resources, tutorials, activities, projects). You can also browse by broad subject area or specific sub-categories.

Commonwealth of Learning
http://www.col.org/lor/
The Commonwealth of Learning is an intergovernmental organization created by Commonwealth Heads of Government to encourage the development and sharing of open learning/distance education knowledge, resources and technologies. COL is helping developing nations improve access to quality education and training.

MIT's OpenCourseWare:
http://ocw.mit.edu/OcwWeb/
MIT's OPenCourseWare is a free and open educational resource for faculty, students, and self-learners around the world.