The Education Index at PhDs.org, using information from the National Center for Education Statistics, has constructed a tool to help prospective students in the U.S. pick the college that best suits their needs. There's a wealth of information, and you can browse by subject and degree.
OnlineCourses.com aggregates over 500 open college courses offered by institutions such as Yale, Harvard, Princeton, and MIT, providing a single platform you can search, and also allowing you to keep track of your progress and share it.
A list of 100 blogs by and for post-graduate students (covering a wide range of topics)
A new German initiative sounds intriguing: iVersity describes itself as a "collaboration network for academia." Available in English, German, Spanish and Portuguese, iVersity lets professors create research groups, conferences, and courses.
Collection of teaching and learning resources from U.S. federal agencies, FREE (Federal Resources for Educational Excellence?
For those in higher education, Michigan State University has an extensive directory of links to instructional resources, classified by discipline, at http://fod.msu.edu/oir/Online-Instructional-Resources
College teachers might like to check out eTLC, resources created to help science faculty at the University of British Columbia deal with large classes. Specifically, "Resources to enhance interaction and cooperation among students; Resources to enhance active learning in large classes; Resources to promote feedback between students and instructors " https://sclt.science.ubc.ca/resources
College students and those interested in DIY learning might be interested in Open Textbooks. http://www.collegeopentextbooks.org
Edutopia has an article about curriculum sharing, with links to curriculum-sharing sites. http://www.edutopia.org/blog/curriculum-sharing-sites-vanessa-vega
There's over 1500 video lectures available on a whole range of subjects at Academic Earth
Annenburg Learner has teacher resources and professional development across the curriculum, in the form of videos
The WWW Virtual Library is a good starting point for hunting up reference and subject sites:
All Academic is an academic index for articles that are free online.
A relatively complete index of psychologically related electronic journals, conference proceedings, and other periodicals is available at:
If you're looking for old books (before around 1923), take at look at Project Gutenberg:
What Works Clearinghouse "reviews the research on the different programs, products, practices, and policies in education. Then, by focusing on the results from high-quality research, we try to answer the question “What works in education?” Our goal is to provide educators with the information they need to make evidence-based decisions."
the National Center for Case Study Teaching in Science has nearly 400 case studies, plus articles for teachers on using the case study method for teaching science http://sciencecases.lib.buffalo.edu/cs/
Since I often report on the gender issue in math and science, here's some resources for teachers or parents who want to support girls in science, math, or engineering: . Regardless of gender, you can find many activity links under "Curriculum".
Those who want a taste of sociology might like to check out the Everyday Sociology Blog, “a site that features interesting, informative, and most of all entertaining commentary from sociologists around the United States.“ Includes some interesting short videos.