The Civil War A very extensive site, with a particularly fine collection of articles from Harper's Weekly, a major newspaper of the period.
Confederate Railroads: A very impressive resource with a vast amount of information on the Confederate Railroads during the Civil War - nearly 4,000 pages at the moment.
Victorian Era Lovers: A large collection of Victorian web links, with a good section on the American Civil War
Civil War Virginia Historical Markers - organised by campaign, with pictures of each surviving marker
Annual Gettysburg Battlefield Reenactment: Currently working on the 2007 reenactment.
Gettysburg Pennsylvania Welcome Centre: A good guide to the Gettysburg area today.
The American Civil War: Battle of Gettysburg: An interesting photographic guide to the battlefield
Friends of Gettysburg National Park: Dedicated to preserving the battlefield at Gettysburg.
Official Records of the Rebellion at E-History: A page by page text version of the Official Records of the Rebellion, probably the most important of all Civil War sources.
Making of America at Cornell University: The same source, but this time based on the original scanned pages.
Civil War Maps at the Library of Congress: A superb collection of contemporary maps provided by the Library of Congress
Selected Civil War Photographs at the Library of Congress: As above but for photographs.
Civil War Poetry by Charles L. Cingolani