American History 102: 1865 to the Present
This webpage is from a class at the University of Wisconsin. It includes lecture notes and brief biographies of some people from American History and links

IPL's American History Links
This is the Internet Public Library's (IPL's) collection of American History links and it includes a section about historical documents. It is fairly large collection of links and the links are well described.

American Experience
This is the website of the PBS TV series and it includes a section on biographies, techology, and the presidents. Also it includes some mini-sites on some topics such as the Hurricane of '38 and General Douglas Macarthur.