Abraham Lincoln Online
http://www.netins.net/showcase/creative/lincoln.html
Hundreds of links.

Arguing the Point
http://www.mcny.org/arguing.htm
Currier & Ives images of the Civil War era, including the elections preceiding the war.

Civil War Photographs, 1861-1865
http://lcweb2.loc.gov/ammem/cwphome.html
Photographs of officers, troops, and battlefields. Most of these photographs were taken from Mathew Brady by his creditors.

Rare Map Collection - American Civil War
http://www.libs.uga.edu/darchive/hargrett/maps/civil.html

The Valley of the Shadow: Living the Civil War in Pennsylvania and Virginia
http://jefferson.village.virginia.edu/vshadow2/contents.html
An intensely detailed exhibit uses photographs, maps, letters, and newspapers to relate the Civil War experience of two similar counties on opposite sides of thw war.

U. S. Civil War Center
http://www.cwc.lsu.edu/cwc/
Hundreds of links to information about the Civil War, including documents, maps, photographs, and information about specific battles and units.