1. History Matters: The U.S. Survey Course on the Web

   Center for History & New Media/American Social History Project: http://historymatters.gmu.edu
   Has annotated guide to more than 800 US history web sites

2. Yahoo! Directory: History

http://dir.yahoo.com/Arts/Humanities/History/ : most comprehensive directory with 33,000 sites; not complete or up to date, but still useful.

3. H-Net: Humanities and Social Sciences OnLine

H-Net, Michigan State University:http://www.h-net.msu.edu/
Gateway to dozens of history discussion networks, administered via electronic mail by H-Net

4. Center for History & New Media

CHNM: http://chnm.gmu.edu
Contains links to more than 1100 history department web pages as well as many tools and resources.

5. World History Matters

CHNM: http://chnm.gmu.edu/worldhistory: detailed reviews of 150 websites in world history under "World History Sources"