Neowin.Net: www.neowin.net (forum: www.neowin.net/forum)

MSFN: www.msfn.org (forum: www.msfn.org/board/index.php)

TweakXP: www.tweakxp.com (forum: forum.tweakxp.com/forum)

Windows security: www.windowsecurity.com

Security Forums: www.security-forums.com/ (forum: www.security-forums.com/forum/index.php)

W3Schools Online Web Tutorials: www.w3schools.com/default.asp
Great tutorials for learning HTML, XHTML, CSS, XML, Java scripting, vb scripting, and much more.

How stuff works: http://computer.howstuffworks.com

Wikipedia.org: en.wikipedia.org
Great online encyclopedia.

Bleeping computer tutorials: www.bleepingcomputer.com/forums/tutorials.html

AutoPatcher: www.autopatcher.com
A great project, checkout the forum to see the work behind the scenes
See the autopatcher pageautopatcher page of mine for more info.

GRC.com: www.grc.com
Check your firewalls effectiveness, look for open ports on your pc, etc

A Decimal/Hex/Oct/ASCII Converter: www.cplusplus.com/doc/papers/ascii.html
Might be useful to some people

BlackVipers XP Service list: www.blackviper.com/WinXP/xpprofiles.htm
Among other info theres a list of all the xp services, with explanations of what they do and which can be turned off.

Crucial.com: www.crucial.com
Find memory to upgrade your system with.

Google: www.google.com
Google Linux: www.google.com/linux
Google BSD: www.google.com/bsd

Dogpile: www.dogpile.com/
Aparently uses all the major search engines and returns the best results