Comet.co.uk
Online computer jargon buster.
http://www.comet.co.uk/comet/html/cache/jargon_buster.htm
http://www.comet.co.uk/nojargon

FOLDOC
FOLDOC: Free On-Line Dictionary of Computing.
http://foldoc.org/

Hyperdictionary
Online computer dictionary.
http://www.hyperdictionary.com/

Iana
Look-up the Internet codes of countries worldwide.
http://www.iana.org/cctld/cctld-whois.htm

Internet Country Codes
As the title states.
http://www.webmaster.bham.ac.uk/country_codes.html

Loki
Location-based Internet search and navigation software that pin-points where you are and then offers a range of localized information and services.
http://www.loki.com/

Matisse.net
Glossary of Internet terms.
http://www.matisse.net/files/glossary.html

Monster.com
Choose one of the languages listed in the "Language Guides" section of this site and then click on the link marked "Basic Vocab", to view a list of essential computing phrases in French, Spanish, Italian, German and Chinese.
http://international.monster.com/workabroad/articles/

NetLingo
The language of the Internet explained.
http://www.netlingo.com/

Self SEO
Find the IP address of a website.
http://www.selfseo.com/find_ip_address_of_a_website.php

UCI.du
Two-letter Internet country codes.
http://www-old.ics.uci.edu/pub/websoft/wwwstat/country-codes.txt

Webopedia
Online dictionary and search engine for computer and Internet technology.
http://www.webopaedia.com/
http://www.pcwebopedia.com/

WhatIs?com
Searchable IT-specific encyclopedia.
http://whatis.techtarget.com/