Graphics and rendering

OpenGL.org
Everything you need to know about OpenGL (my favorite graphics API).

Real-Time Rendering
There are some good links to tutorials and other information here.

Windows Screen Saver Programming
Some cool savers here and, more importantly, info and code for making your own screensavers.

How to Write a 32-Bit Screen Saver
A little saver example from Microsoft.

Gamasutra
Loads of good technical articles for graphics nerds and some good news articles too.

NeHe
The classic OpenGL tutorial website.

Humus
Great eye candy and technology demos here. He makes stuff with both OpenGL and Direct3D.

Hardware and computer building

AnandTech - hardware news, reviews, and forums
Silent PC Review - hardware reviews for building quiet computers and excellent lists of recommended components
Sudhian - hardware news and forums
[H]ard|Forum - general hardware forum
Tom's Hardware Guide - hardware news, reviews, and forums

High-definition television and general videophelia

AV Science Forum
High Def Forum

Screensavers and related utilities

Isotope244 Graphics
Not just savers. This guy actually lives across town from me; what a small world.

Plane 9
Planestate is Joakim Eriksson's first screensaver and one of my personal favorites.

RandomScreensaver
RandomScreensaver from FalsinSoft is a nice tool if you don't want to see the same saver over and over again.

ScreenPaper
This utility lets you run screensavers in place of a background image on your desktop.

Other eye candy

Akiyoshi's illusion pages
Professor Kitaoka has some stunning optical illusions, many based on simple alternating colors that trick the eye into perceiving motion.

Everything else

MajorGeeks
Geekware and utilities for pretty much every purpose under the sun. This site is run by some old-school webmasters from the dawn of the Internet.

NiftyWindows
NiftyWindows is a free Windows tool that lets you do some snazzy window manipulation with the mouse and some hotkeys. WIN+S starts the screensaver with password protection enabled, which is nice if you have to leave a room in a hurry. The fellow who wrote it has done a lot of beta testing of my savers.

The Jewelry of Ahlene Welsh
My mom, the jeweler.

The Art of Orr Marshall
My uncle, the artist.

Segway of Pacific Beach
My brother's shop in San Diego.

Terry's Page
My personal webpage.