Troubleshooting and Resource Guide for Windows (my own non-technical help site)
www.toejumper.net/

5 Star Support (excellent site that offers a comprehensive amount of technical info, tutorials, newsletters, and forums)
www.5starsupport.com/

About.com (if you don't mind a good bit of poking around, you can usually come up with some answers from this site; there's more here than you might think)
www.about.com/

Answers that Work (go here for lots of tips, how-tos, and documents)
www.answersthatwork.com/

Apple History (history of Apple Computers)
www.apple-history.com/

Artificial Intelligence with Denis Susac
ai.about.com/

ASCII Art (home of so many of those cool ASCII art files people love to disseminate)
www.ascii-art.com/

Ask Mr. Excel (take your Excel questions here)
www.mrexcel.com/

Beginners Central (a User's Guide to the Internet, just what it says, and very comprehensive)
northernwebs.com/bc/

Bob Cerelli's Windows Page (an excellent site for Win info)
www.onecomputerguy.com/

C|NET (a big, splashy "techie portal" full of useful information and links)
www.cnet.com/

Computer History and Emulation
www.komkon.org/fms/comp/

Computer History Association of California
www.chac.org/

Computer Museum History Center
www.computerhistory.org/

Computer Museum of America
www.computer-museum.org/

Computer Tutor (nicely designed site with lots of valuable info and an emphasis on fun things to do with your critter)
www.personal-computer-tutor.com/

CyberAngels (good site for parents concerned about their kids' Net safety)
www.cyberangels.org/

Devhead (online resource community for Web developers)
www.zdnet.com/devhead/

DigitalThink (provides a library of computer-related and college courses)
www.digitalthink.com/

Drivers Headquarters
www.drivershq.com/

EasyDOS (a guide to using DOS -- lots of definitions, tips, walkthroughs, and so on)
www.easydos.com/

EasyWindows (a guide to using Windows -- lots of definitions, tips, walkthroughs, and so on)
www.easywindows.com/

Glossary of Technical Terms
support.microsoft.com/support/glossary/

History of the Internet
www.let.leidenuniv.nl/history/ivh/frame_theorie.html

Hobbes' Internet Timeline
www.zakon.org/robert/internet/timeline/

IEEE Annals of the History of Computing
www.computer.org/annals/

Internet for Beginners (just what it says; good compendium of info from About)
netforbeginners.about.com/mbody.htm

Internet Web Archive (thousands of gone-but-not-forgotten Web sites are archived here -- you know you gotta go)
www.archive.org/index.html

Internet ScamBusters (a site devoted to debunking the waves of Internet myths and frauds circulating throughout the Net)
www.scambusters.com/

Jan's Illustrated Computer Literacy 101 (fine source of introductory material)
www.jegsworks.com/Lessons/index.html

J.R. Mooneyham's Illustrated Speculative Timeline of Future Technology and Social Change
kurellian.tripod.com/

Kim Komando's Komputer Klinic: Windows (very novice-friendly)
www.komando.com/help/

List of the Keyboard Shortcuts That Are Available in Windows XP
support.microsoft.com/default.aspx?scid=kb;en-us;Q301583

Lockergnome (highly useful newsletters, discussion groups, etc.)
www.lockergnome.com/

Microsoft Internet Guide and Web Tutorial
www.microsoft.com/insider/internet/default.htm

Microsoft Knowledge Base
support.microsoft.com/ or
search.support.microsoft.com/kb/c.asp

Microsoft Office Resource Kit Site
www.microsoft.com/office/ork/home.htm

Obsolete Computer Museum
www.obsoletecomputermuseum.org/

PC Guide (enormous site spawned from an attempt to organize FAQs from the alt.comp.hardware.pc-homebuilt newsgroup; lots and lots of info, including walkthroughs and reference guides for every PC component known to man)
www.pcguide.com/

PC World Magazine
www.pcworld.com/home/index.html

PC World Online Tips
www.pcworld.com/heres_how/

PC911 (lots of PC info here, along with message boards and the usual extras)
www.pcnineoneone.com/

PowerPoint FAQ
www.rdpslides.com/pptfaq/

Retrocomputing Museum
www.tuxedo.org/retro/

Rob Rosenberger's Computer Virus Myths
www.vmyths.com/

SitePoint Webmaster Resources (great site for Webmasters, and besides, I write for these guys!)
www.sitepoint.com/

Smart Computing (online presence of the monthly publications -- lots of info here)
www.smartcomputing.com/

Surf Swell Island (Disney-owned site that teaches younger kids how to Web-surf safely)
www.surfswellisland.com/

Tech Museum Interactive Site
www.thetech.org/hyper/

TECHtionary (Flash-driven online technical dictionary that often gives you animated illustrations of a phrase or concept)
www.crosstouch.com/techtionary/index_in.html

Tom's Hardware Guide (an excellent source for chipset information, etc)
www.tomshardware.com/

W3Schools (excellent site to learn HTML, CSS, DHTML, XHTML, WML, DOM, WAP, Flash, JavaScript, and other Web necessities)
www.w3schools.com/

Web Wise Kids (site for teen Web surfers who want to surf safely -- or whose parents want them to)
www.webwisekids.com/

WebChron: The Web Chronology Project (hyperlinked histories of various areas of the world, cross-related to each other)
campus.northpark.edu/history/WebChron/

Where Is It? (compendium of technical sites, links, reviews, etc)
dubber6.tripod.com/whereisit/

Windows Guide Network (lots of info, mostly on the Registry, scripting, and security)
www.winguides.com/

Windows Shutdown and Restart Center (very informative site)
www.aumha.org/a/shutdown.htm

Windows XP FAQ (the latest info on Microsoft's latest OS)
www.winsupersite.com/faq/whistler.asp

Woody's Office Portal (help for users of Microsoft Office and other Microsoft products)
www.wopr.com/

ZDNet (a huge techie site featuring all the resources of the Ziff-Davis publishing group)
www.zdnet.com/

More to come...