There are a number of specialist societies around the world for those interested in Military History as well as archives containing original information. Here are a few we have found useful.

• Ancestry.co.uk
• Cold War International History Project
• Dictionary of American Naval Fighting Ships
  
• Military Historical Society (Stafford)
• Military Genealogy
• Society for Army Historical Research
• Society of Military History
• The Aerial Reconnaisance Archive
• The Napoleon Series
• USS United States Foundation
• Victorian Military Society
• World War 2 In Color