American Civil War Gaming & Reading Blog: Focuses on new American Civil War wargames, game & book publishers, current books being read, research, and a blog.
Civil War Discussion Group: The place to openly discuss the American Civil War, books, movies, and other related topics.
Civil War Forum Frigate: Discussion forum and live chat devoted to the United States Civil War.
Civil War Talk.com: An online source for free and useful information about the American Civil War, including a community forum and resource center.
civilwarwest - Wester Theater Discussion Group: This group discusses all aspects of the American Civil War as conducted in the Western Theater of operations. Any action that did not involve Lee's Army of Northern Virginia or the Peninsula Campaign is open for discussion.
H-CivWar: United States Civil War History: H-Net discussion group dedicated to the history and culture surrounding the War Between the States. Features subject overview, archive, reviews, links to related lists, and subscription information.
Rebel226 Revisits Civil War History: Discussion forum about the Civil War.
Rebels Revisits Civil War History: Civil War discussion forum divided into several topic areas.
Signal Corp Association Discussion Forum: Technology of telegraphy, balloons, flags, rockets, codes, spies, genealogy
The Civil War Forum: A forum dedicated to providing enthusiasts and historians a place to discuss the American Civil War.