Internet History Sourcebooks Project
Fordham University: Modern History Sourcebook: Russian Revolution
This online directory from Fordham University provides an abundance of essays and articles detailing various aspects of the Russian Revolution as well as a list of additional sources.
Library of Congress
Loc: Today in History: July 17: The Spanish Civil War
The Spanish Civil War was a precursor of the tumult of World War II. Read a brief description of those involved in this civil war and see posters supporting each side.