Combined Operations An amateur interest based website commemorating Combined Operations in support of a memorial fund.
Fortress Study Group The Fortress Study Group is an international society concerned with the study of all aspects of military architecture and fortifications: and their armaments, especially works constructed to mount and resist artillery.
RAF Web An amateur interest website documenting the history of the Royal Air Force.
Secret Scotland Amateur interest website identifying wartime buildings in Scotland.
The Battle of Britain A history of the Battle of Britain hosted on the official Royal Air Force Website.
The Churchill Papers
The online catalogue of the Churchill Archives Centre at Churchill College Cambridge.
The RAF Museum Main front page for the RAF Museums at Cosford and Hendon.
U-Boats Comprehensive website devoted to U-Boats with many references to Orkney and Scapa Flow.