History
American History 

• Abraham Lincoln Papers at the Library of Congress -- a collection of 20,000 documents including speeches, correspondence, and digitized images at the Library of Congress.
• Africans in America -- a PBS journey through history.
• American Centuries -- View From New England -- an online digital exhibit of items from Memorial Hall Museum from the 1700's up to the 1900's.
• American Civil War Homepage
• American Historical Association
• American Memory-- part of the American Digital Library Project of the Library of Congress. Digitized photographs, sound recordings, and more, including political speeches from WW I, Mathew Brady Civil War photos, oral history from the Federal Writers Project.
• American Women's History: A Research Guide -- provides tips on how to research women's history, links to digital online collections, and bibliographies of selected materials
• Center of Military History -- fulltext resources from colonial times to the present. Click here for Battles, be sure to scroll down.
• Colonial Williamsburg Foundation-- Notable for its "Electronic Field Trips," and highly recommended by our history faculty.
• Gateway to African American History -- US State Department’s Bureau of International Information Programs (IIP)
• Historical United States Census Data Browser--for census data between 1790 and 1970. 
• Hoover Presidential Library--important files covering Hoover's achievements, and  early 20th century American history.
• Intelligence in the War of Independence -- history of the use of intelligence by the United States during the Revolutionary War. From the CIA, includes primary documents.
• Lincoln Net -- features primary source material from Lincoln's Illinois years, from Northern Illinois University.
• Making of America--a nice collection of primary documents full-text on subjects as wide-ranging as agriculture, etiquette, yellow fever.  Collected by the University of Michigan Library.
• National Archive-- Includes exhibits, National Audiovisual Information Locator (which searches NARA's huge collection of stills, motion pictures, videos, audio recordings), and the government information locator.
• National Register of Historic Places
• Native American History sources -- 1700s through 1800s
• Organization of American Historians
• Religion and the Founding of the American
• Report on the Nation’s Civil War Battlefields -- contains historical summaries of the 384 principal Civil War battles
•  Republic--an exhibit and history lesson from the Library of Congress.
• Today in American History--archives, too.
• Valley of the Shadow -- Civil war archive and multimedia presentation. A good example of what the web can do.
• The Vietnam Project -- from Texas Tech University, contains the virtual archives of documents relating to the Vietnam War and the oral history project.
• Vietnam, Yesterday and Today
• West Web--annotated set of sites addressing virtually every aspect of the history and culture of the American West: agriculture and ranching, the mining industries, the Hispanic west, settlement and expansion, legal history, women in western history, and much more.
• The Writings of George Washington from the Original Manuscript Sources 1745-1799 -- full text from University of Virginia's Electronic Text Center.  Includes 37 volumes of writings, searchable by keyword.