OCW - University of Washington

http://www.outreach.washington.edu/openuw/

A small amount of free online courses from UW.

Courses: 11

The American Civil War

Energy, Diet and Weight

Greek Mythology

Gulliver's Travels

Hamlet

HTML Basics

History of Jazz: New Orleans

The American Revolution

Shakespeare's Comedies

Heroic Fantasy: Tolkien

World War II

Hyper History Timeline

http://www.hyperhistory.com/online_n2/History_n2/a.html

Interactive timeline of history: "Over 2000 files covering 3000 years of history"

Features: Maps, biographies, catagorization of events by science, politics, religion, war, culture, and time periods, free online textbook and other resources.

Biography.com

http://www.biography.com/people/groups

Biographies of a crap ton of people.

Hippocampus

www.hippocampus.org

A few full high school courses with textbooks/videos/problems/tests/answers. Expanding to a beta site soon.

Algebra (English, Spanish)

American Government Biology (AP) Calculus (English, Spanish) Chemistry Earth Science Economics Physics Religion Psychology Statistics US History