DnD 3rd ed stuff
Zak, Halfling Sorcerer - my dead character
Luna Riverleaf - another dead character
Milo Underhill - my (semi-)retired character.
Backups - Some of my backup characters that didn't make the cut.
DMG Errata - official!
PHB Errata - official!
Rules FAQs - official!
Netbook of Feats - Netbook of Feats site. (Local copies: Vol 9, pdf or Vol 9, zipped)
Father Ramos on RolePlaying If you're not a role-player, and you're not sure if it's for you, make sure you know what you are getting into.
Jump Matrix - an Excel Spreadsheet that will calculate your jump distances.
Armor Generator - an Excel Spreadsheet that calculates cost and creation times for magic armors.
Unofficial Message Boards - a link to Eric Noah's Unofficial Message Boards.
Official WotC Message Boards - New, offical message boards.
Gen Con Handouts - preliminary rules for level 21+ and other stuff.
Online Gaming Reference - The three core books online!
Sage Advice from Dragons 274-281
Online Generators - Generate maps, NPCs, treasure, character sheets, etc.
WotC Web Enhancements - stuff they left out. Fixed bladesinger, maps, other stuff.