2¢ Worth » History = Future ?
Mnemograph: Web Based Timeline Software
Free tool to create online Flash-based interactive timelines.
The Gilder Lehrman Institute of American History
American history museum with some online exhibits and primary source materials. Quizzes and other materials for teachers also available.
Infinite Thinking Machine: Friday Five: Create, Express, Learn with Primary Source Material
Five sites to find and use online primary source content with students, focusing on sites that encourage students to remix and share multimedia content. Some of the sites provide tools for production and publication.