A Cryptographic Compendium - A good breadth description of a lot of cryptography fn2.freenet.edmonton.ab.ca/~jsavard/crypto/entry.htm
Andy's Enigmatic Web Page - Download an Enigma emulator for Windows www.users.globalnet.co.uk/~andlaw/engindex.htm
Bletchley Park - Museum at the site of the World War II codebreaking center, including a project to rebuild Colossus, the all valve computer used to break the ciphers of German High Command. www.cranfield.ac.uk/ccc/bpark
Garat's Hay - Royal British Legion Branch for the Y Wireless Intercept Services. ourworld.compuserve.com/homepages/michael_k_hill
