Drakelow Underground Factory - Paul Stokes - Website chronicling the history of the Drakelow underground factory.
Subterranea Britannica - Nick Catford - The most definitive guide to Nuclear Bunkers and Underground sites in the UK.
Monkton Farleigh - Nick McCamley - Website dedicated to the most TOP SECRET former underground sites in the UK.
Ring Bell - Steve Scanlon - The most definitive guided to the UK Cold War Communications Network.
Struggle For Survival - Steve Fox - The most definitive guide to the RSG, RGHQ & UK Defence Network, during the Cold War.
Royal Observer Corp Association - Website dedicated to the history of the Royal Observer Corp.
Atomica UK - George Coney - Website archive of "Protect & Survive" & UK Civil Defence Publications.