Console Related Sites:

N64:
IGN64
Official Nintendo 64 Site
Zelda headquarters

Playstation:
Official US Playstation Magazine
Official Playstation Site
The Playstation Galleria
PSM Online
PSX Nation

Saturn:
Official Sega Site
Sega Net
The Sega Zone
Saturn World

Emulation Pages:
Archaic Ruins
EMU News Service
Zophar's Domain

Game Specific Sites:

Fallout:
Duck and Cover: Your Fallout Guide
The Official Fallout Site
The Official Fallout 2 Site

Total Annihilation:
Annihilated.com
The Official Total Annihilation Site - If you don't believe me, go ask the Core Commander!

Other Game Sites Worth Visiting:
(Warning! - Many of these sites ONLY cover Comparisons of 3Dfx Cards, 3Dfx News and Releases, 3Dfx Stock prices and Marketing Position, and don't ever say one useful thing about actually PLAYING video games. You have been warned.)

The Adrenaline Vault
Game Briefs
Games Domain - The Gamers Voice
GameSpot
OGR - Online Gaming Review
PCME - PC Multimedia & Entertainment

2D/3D Graphics Card Manufacturers:
3D Labs (Permedia2 Chipset)
ATI (Xpert Series)
Intel/Real 3D (i740)
Matrox (Mystique, Millenium, & G200)
nVidia (Riva 128, Riva ZX, & Riva TNT)
Rendition (Vérité 1000, V2x00, Conspiracy, & V3300)
S3 (Savage 3D)

2D/3D Graphics Card Fan Sites:

3D Labs Permedia2:
Permedia2 Factor
Permedia2 General Resource

General:
Dimension 3D

i740:
740

Matrox:
The Matrox Sphere
The Matrox Users Resource Centre

nVidia Riva:
Dimension 128
Planet Riva
Riva 3D
Riva Exreme
RivaZone

Rendition:
Björn's 3D World
NiNe's Rendition Quake & Quake 2 Workshop
Renaddiction
Rendition 3D
The Rendition Costello Clan
Rendition Hacking & Tips
V2100 MAX

S3:
S3 Planet