The Encyclopedia of Cleveland History  
   The definitive source of information regarding the history of Cleveland, Ohio.
   http://ech.cwru.edu/

Encyclopedia of 1848 Revolutions  
   Articles about the people and ideas motivating the 1848 European revolutions. Most articles have bibliographies.
   http://cscwww.cats.ohiou.edu/~Chastain/index.htm

Perseus Encyclopedia of Ancient Greece  
   Short definitions and articles about ancient Greece.
   http://hydra.perseus.tufts.edu/cgi-bin/text?lookup=encyclopedia+toc

World Hyperhistory  
   HyperHistory Online navigates through 3,000 years of world history with timelines of civilizations (plus maps), people, and events.
   http://www.hyperhistory.com/online_n2/History_n2/a.html

Palestine  
   All what you need to know about the current history of Palestine.
   http://www.palestinehistory.com/

Military History Encyclopedia  
   Reference for all military history - wars, individuals, battles, weapons and the concepts behind warfare.
   http://www.rickard.karoo.net/

ORB: Online Reference Book for Medieval Studies  
   Short articles with links to other web resources about European history from the Roman empire to 1300.
   http://the-orb.net/

Cunnan  
   User edited encyclopedia of the middle ages operated by the Society for Creative Anachronism.
   http://www.sca.org.au/cunnan/wiki/Main_Page