University of Virginia Electronic Text Center
http://etext.lib.virginia.edu/subjects/
“The Etext Center at the University of Virginia Library has pursued twin missions with equal seriousness of purpose since its inception in 1992: To build and maintain an internet-accessible collection of SGML and XML-encoded texts and images…To build and maintain user communities adept at the creation and use of these materials.”
The most useful collection in this online library is The Modern English Collection (AD 1500-present). Within this collection there are primary documents from African American and Native American sources, the American Civil War, the Colonial era, Women Writers and many others. These documents range from runaway slave advertisements to works of early American fiction. This collection has many of the common documents that are easily found elsewhere, but also contains thousands of unique resources. The selection offers the opportunity to go beyond well-known sources and to utilize new and fresh documents. This collection is an excellent place to find primary documents for classroom use. Though not directly applicable to U.S. History there are also interesting sources for European and world history. (BR)

Voice of the Shuttle
http://vos.ucsb.edu/browse.asp?id=2713
A professor at the University of California at Santa Barbara together with a team of graduate students maintains this portal site. They must have been keeping themselves busy because their sites content is enormous! Although including many subjects, the most extensive is the list of History websites. On the right hand side of the page is a list of topics including U.S. and Native American history. Clicking on these links will direct you to lists of websites. The links are all organized into subcategories such as “US-Indian Treaties and Related Documents,” “Revolutionary America (to 1791)” and “U.S. Civil War.” There are 38 such subcategories. Each link has a brief annotation or explanation of the site. Furthermore, the resources on the page all seem to be updated and without bad links. This is a well-organized portal site with a wide range of subjects to choose from. It well deserves the awards and distinctions it has received.