Documents - US:
http://www.law.ou.edu/hist/ (Many major documents, including inaugural addresses of presidents)
General US History Websites: http://history.hanover.edu/etexts.html http://us.history.wisc.edu/ hist102 http://ushistory.org http://www.memorialhall.mass.edu/ http://www.digitalhistory.uh.edu http://facinghistory.org http://odur.let.rug.nl/~usa/ http://www.historyplace.com/ http://www.bartleby.com http://www.harpweek.com http://free.ed.gov:80/resource.cfm?resource_id=2044 http://memory.loc.gov/ammem http://www.archives.gov/historical-docs/ http://mediahistory.umn.edu http://www.ashp.cuny.edu http://free.ed.gov/HandSS.cfm
Maps:
http://www.lib.utexas.edu/maps/map_sites/hist_sites.html#US http://www.usgs.gov http://xroads.virginia.edu/~MAP/map_hp.html
Professor Ferguson's Home Page