- A Husband’s Most Secret War in MI9 IS9: http://www.mi9-is9.com/index.html.
- Bletchley Park: For links to women of Bletchley Park, click here.
- Britain’s First Female WWII Spy, Krystyna Skarbek/Christine Granville: https://www.theguardian.com/world/2017/may/09/britains-first-female-second-world-war-spy-to-get-overdue-recognition
- Codes and Ciphers in the Second World War: http://www.codesandciphers.org.uk/. Scroll down past the ads to get to the substance.
- Decoding Nazi Secrets: http://www.pbs.org/wgbh/nova/decoding/. This is the companion site to the two-hour NOVA program on how the Allies cracked the Enigma.
- Encoded Communications of World War II: http://www.shoretelsky.com/resources/encoded-communications-of-world-war-ii/?ce1=2&utm_expid=71849756-7. This website contains links to 20 other websites on various aspects of coded communications in WWII, from Enigma to the Navajo code talkers.
- Englandspiel by Adri Wijnen: https://www.englandspiel.eu/. See their Foundation SOE at: http://www.englandspiel.eu/stichting.php?taal=en. See under the website’s side-heading of “Research” for a great many records from The National Archives of the UK regarding the SOE that can be printed out or downloaded.
- Englandspiel (Wikipedia article): http://en.wikipedia.org/wiki/Englandspiel
- German Intelligence Service: https://archive.org/search.php?query=GERMAN+INTELLIGENCE+SERVICE+%28WWII%29&sort=titleSorter
- International Spy Museum: http://www.spymuseum.org/
- London Calling North Pole: http://spyinggame.me/2011/03/16/london-calling-north-pole-by-h-j-giskes-1953/
- Maurice Southgate, SOE–Extracts from his diary courtesy of Parade Antiques: http://blog.paradeantiques.co.uk/category/soe-southgate-dso-diary/
- Military Intelligence Museum, Shefford, U.K.: http://www.armymuseums.org.uk/museums/0000000048-Military-Intelligence-Museum.htm or http://www.militaryintelligencemuseum.org/
- Nazi Prisoners Bugged by Germans: http://www.bbc.co.uk/news/uk-20698098
- Netherlands Intelligence Studies Association: https://www.nisa-intelligence.nl/contributions.htm. See in particular the book by Frans Kluiters, De Abwehr in Nederland (1936-1945), available as a series of pdf files.
- Noor Inayat Khan Memorial Trust: http://www.noormemorial.org/
- Plan Sussex: http://www.plan-sussex-1944.net/. English language: http://www.plan-sussex-1944.net/anglais/macro.htm
- Secret WW2 (The Secret War Museums and Learning Network): http://www.secret-ww2.net/
- Set Europe Ablaze (SOE-Related Topics): http://nigelperrin.com/
- Set Europe Ablaze, The Special Operations Executive: http://www.set-europe-ablaze.co.uk/
- SOE Actions in France: http://herve.larroque.free.fr/sgbindex.htm
- SOE Files Released in 2014: https://www.nationalarchives.gov.uk/news/960.htm?utm_medium=email&utm_source=The+National+Archives&utm_campaign=4815058_October+2014+enewsletter&utm_content=KV2
- SOE Trails: http://soetrails.com/
- SOE War Diaries: http://www.weggum.com/inhoudsopgave_SOE.html.
- Special Forces Roll of Honor: http://www.specialforcesroh.com/browse.php. For SOE agents: http://www.specialforcesroh.com/browse.php?pageid=soe.
- Special Operations Executive: http://www.ampltd.co.uk/digital_guides/special_operations_executive_series_1_parts_1_to_5/Publishers-Note-Part-4.aspx
- Tempsford Special Duties Squadrons: http://www.tempsford-squadrons.info/
- Tentative History of In/Exfiltrations Into/from France During WWII from 1940-1945: http://www.plan-sussex-1944.net/anglais/pdf/infiltrations_into_france.pdf
- “The Infiltrators”, by Norman Ohler. About German Resistance and escape lines. See https://www.the-tls.co.uk/articles/the-infiltrators-norman-ohler-review-jane-yager/
- The New RID: Radio Intelligence Division of the FCC in WWII: http://fccrid.org/. See in particular the news stories about the RID in the website’s Articles page. I was alerted to the website by an article in the December 2014 issue of WWII History, “The FCC and Japan’s Surrender,” by Susan L. Brinson, pp. 26-32.
- Vandermeersche, Gaston (obituary): http://www.telegraph.co.uk/news/obituaries/military-obituaries/special-forces-obituaries/8147780/Gaston-Vandermeerssche.html
- Violette Szabó, George Cross: http://www.violetteszabo.org/
- WW2 People’s War, an archive of World War Two Memories, written by the public, gathered by the BBC. The following link has to do with special operations and intelligence: http://www.bbc.co.uk/history/ww2peopleswar/categories/c1176/
WWII Netherlands Escape Lines 