Codes
Standard Codes
ISO Country Codes
Listing of country codes. Two letter codes are used in Internet addresses. Maintained by the ISO 3166 Maintenance Agency.
This is the web site for ISO 3166 Maintenance Agency.
url: http://www.din.de/gremien/nas/nabd/iso3166ma/index.html
United Nations Codes for Ports and other Locations
Codes from the United Nations Centre for Trade Facilitation and Electronic Business
url: http://www.unece.org/cefact/locode/service/main.htm
World Trade Point Federation: Standards and Codes
UN/LOCODE, Countries and Currency, Codes for Units of Measurement used in International Trade.
url: http://www.wtpfed.org/index.php?id=20&L=0
Abbreviations of Canadian Provinces and American States.
url: http://www.enoreo.on.ca/flatstanley//abbrev.html
Abbreviations for International Organisations and Groups
url: http://www.ems.psu.edu/~williams/states/appendb.htm
Codes & Ciphers
Codes, Ciphers & Secret Messages
Comprehensive collection of links for codes, ciphers and cryptography
url: http://eduscapes.com/42explore/codes.htm
Morse Code
url: http://www.soton.ac.uk/~scp93ch/refer/alphabet.html