The History Net:  The World’s Largest History Magazine Publisher
A great site with a free on-line library  of good quality historical articles taken from  various magazines published by The History Net.
http://www.historynet.com/

The History Channel
http://www.historychannel.com/

The Best Of History Web Sites
A  useful directory of history sites
http://www.besthistorysites.net/

Ancient History at About.Com
Some excellent resources here - updated regularly
http://ancienthistory.about.com/b/index.htm

Twentieth Century History at About.Com
Link to more history topics at About.com
http://history1900s.about.com/

The History Teacher Net
http://www.historyteacher.net/

Canon 3 D Paper Craft
Build free 3D paper models of historical buildings using bubble jet printer
http://cp.c-ij.com/english/3D-papercraft/

Delta Studios - 7 Wonders of the Ancient World free 3D paper Models
http://www.delta7studios.com/wonders.htm

Teachnology
http://www.teach-nology.com/worksheets/