Best History Sites: Over 1000 history web sites as well as links to hundreds of quality K-12 history lesson plans, history teacher guides, history activities, history games, history quizzes, and more.
Stumbleupon: The best way to discover great websites, videos, photos, blogs and more.
Ancient / Classical History, N.S. Gill at About.com: Includes blog and newsletter.
Intute: A free online service created by a network of UK universities and partners. Subject specialists select and evaluate websites included in a database of 123,766 records.
Taking a Bite out of Books: Free educational materials from a student-run, volunteer-operated website.
Historical Atlas of the Mediterranean: Interactive maps from the Bronze Age Minoan World and Mycenaean Greece to Islamic Spain and the Reconquista.