• The Visual Front: Posters of the Spanish Civil War from UCSD's Southworth Collection.
• Spanish Civil War Portal. This site is available in many languages, including Spanish.
• Shots of War: Photojournalism During the Spanish Civil War
• Spanish Civil War: Dreams and Nightmares at the Imperial War Museum Sound Archive (Great Britain)
• Spanish Civil War Archive at the Anarchy Archives.
• La Cucaracha: The Spanish Civil War Site. This site sees itself as a memorial to those who fought against fascism in Spain. Its content (in English, Spanish, and German) includes images and songs.
• Essays on the Spanish Civil War by Albert Weisbord (an American Communist).
• Abraham Lincoln Brigade Archives. Established by veterans of that brigade for pedagogical purposes.
• Art from the Spanish Civil War

Image: Guernica by Papblo Picasso (1937)