<Vietnam: The Paper War>- PSYOP used during the Vietnam wars.
<The Psywar Society>- an excellent source of information for all interested in aerial propaganda leaflets and PSYOPS activity generally.
<PsyWar.Org>- the history of psychological wafare, PSYOP and aerial propaganda lealflets from World War One to the present day.
<Psywarrior>- a psychological operations website produced by US Army PSYOP veteran.
<Sefton Delmer>- the complete text of Sefton Delmer's book Black Boomerang. Sefton Delmer was head of British black propaganda during WWII; the website is produced by his son.
<Counterfeit Notes of War>- focuses on the use of propagandised currency notes in war and conflict.