African American soldiers during the Civil War: Study of African Americans' impact on the war. Original letters, images, documents and articles regarding Black soldiers, including training manuals and other primary sources

Gettysburg National Military Park (National Park Service): The Park Service's site on the battlefield. In Depth section includes news, a virtual tour and details of the Gettysburg Cyclorama

Klondike Gold Rush National Historical Park: Find out about the Klondike Gold Rush including Skagway, Dyea, and the Chilkoot Trail

New Perspectives on The West: Companion site to Ken Burns' program about the American West featuring an interactive timeline, maps, and archived primary source materials

Vice President of the United States: US Senate Historical Office's compendium of information about the office and the people who have held it