Enigma Simulator software developed for RISC OS, by Paul Reuvers.... Now offers an Enigma-E Electronic Kit !.
http://www.xat.nl/enigma/

New Enigma simulator web site done in COOL Flash 5!
Produced by Frank Spieß, Duesseldorf, Germany
http://enigmaco.de


Bletchley Park web site:
http://www.bletchleypark.org.uk/

CRYPTOLOGIA quarterly journal of cryptology http://www.dean.usma.edu/math/pubs/cryptologia/

The Super Enigma A beautiful Machine

http://powweb.com/ Only 3.33 / Month !