Ancient Civilizations
CIA Factbook on Countries
http://www.odci.gov/cia/publications/factbook/index.html
Defense Technical Information Site
http://www.dtic.mil/
State Dept. Background Notes on Countries
http://www.state.gov/r/pa/ei/bgn
The Middle Ages
http://www.learner.org/exhibits/middleages/resources.html
U.S. History and World History:
http://quaboag.k12.ma.us/
The Bill of Rights website
http://billofrightsinstitute.org
Library of Congress collections
http://memory.loc.gov/ammem/collections/finder.html
New England history, interactive, creates timelines
http://www.memorialhall.mass.edu/
The Federalist Papers and the Constitutions of the States and more
http://www.yale.edu/lawweb/avalon/18th.htm
Statistics on many aspects of American life
http://www.fedstats.gov/
http://www.census.gov/
http://www.prb.org/
then click on Media Center then quaboag virtual classroom then history click on "all k-12 databases" scroll down to "opposing viewpoints resource center" username= discovering password= collection