Guru (for freelancers)
Real Rates (for freelancers)
ManageEngine
How to Become a Hacker
Paul Graham

I want one...

Legal Zoom

Misc.: To make Windows Search work properly: Modifying the registry and
set the FilterFilesWithUnknownExtensions DWORD value to 1 in the
following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ContentIndex

Domain Hacks
Open Web Design
Open Source Web Design
Color Scheme Chooser
Textures
Free Photography
IP Lookup
Unicode Conversion
More unicode conversion
Color wheel
Steve Souders - Faster Websites

Lutz's Reflector

Specs

CSS 1
CSS 2.1
CSS 3

Examples

CSS Zen Garden
Three Columns
Listamatic
CSS Menus

Validation

Validator

Reference

Devmo Reference
Quirks Mode
Correct OOP

Libraries

prototype.js (Reference)
moo.fx
script.aculo.us
mochikit
behaviour
open rico
yui

etc

Javascript Compressor
RSA in Javascript
Image Map
Image Box
Image Crossfade
CSS Image Display

PHP Docs

Python Docs
Python Quick Ref

why's (poignant) guide to Ruby

Reference

XUL Reference
XPCOM Reference

Portals

XUL Planet
Devmo

Examples

Mozilla Update
Mozdev

Books

Mozdev Books
RAD with Mozilla

Specs

HTML 4.01
XHTML 1.0
XHTML 1.1

Validation

Validator