The United States Civil War Center. A comprehensive index to Civil War websites, divided by category. Dynamite!
Civil War Archives. Check out the "Soldier's Letters" and "Soldier's Diaries" pages.
In the Valley of the Shadow. A very cool site. You can search primary source letters and diaries by keyword, such as "camp life."
The Smithsonian -- Civil War Archives. Click through the advertisement!
A Nation Divided --The History Place. A timeline of Civil War events , with battle links and information on other historic events such as "Lincoln Shot."
New Georgia Encyclopedia. (The state of Georgia's encyclopedia. Use the search box on the site.)
Historynet.com: The Civil War. (Use the search box on the site.)
Food: Civil War Interactive Cookbook. Recipes from the Civil War (yum!)
Camp Life: In the Valley of the Shadow. Search the letters and diaries by keyword, such as "camp life."
Photography: Civil War Photographs. A Library of Congress site filled with pictures of the Civil War.
Women: Primary Sources: Civil War Women. Digitized letters and diaries, sponsored by Duke University.
Art: Civil War Battlefield Art. National Geographic.
Battles: Battle Summaries by Campaign. Choose a Civil War battle and find out who was in command, other names for the battle, and a brief outline of exactly what happened.
Music: Civil War Music. From The Library of Congress.
Civil War Era Music. Listen to many songs.