The American Translators Society sponsors the following links:

International Organization for Standardization Web site.
Unicode Consortium Web site.
World Wide Web Consortium Web site.

[IANA Charsets]
IANA Names for Character Sets. IANA (Internet Assigned Numbers Authority), Aug 2001
[ISO 639]
Codes for the Representation of Names of Languages. ISO (International Standards Organization), Nov 2001.
[ISO 3166]
Codes for the representation of names of countries and their subdivisions. ISO (International Organization for Standardization), Jun 2000.
[ISO 8601]
Representation of dates and times. ISO (International Organization for Standardization), Dec 2000.
[RFC 3066]
RFC 3066 Tags for the Identification of Languages. IETF (Internet Engineering Task Force), Jan 2001.
[XML 1.0]
Extensible Markup Language (XML) 1.0 Second Edition. W3C (World Wide Web Consortium), Oct 2000.