Programming
Below is a list of resources sorted by language that I've found helpful.
ActionScript
ASP / ASP.Net
Bash
C / C++
Cocoa / Objective-C
ColdFusion
General Reference
AlternateIdea
Dev Articles
Dev Shed
Essential Guide to Regular Expressions
Hot Scripts
SitePoint
txt2re regular expression generator
HTML / XHTML
Javascript
JQuery
LUA
Perl
PHP
Python
Ruby
SOAP
SQL (Database)
The following are applications or frameworks that I've found helpful while programming.
Code Editors
Desktop Application Development Frameworks
Game Engines
Blender
Cocos2d
Game Maker
GameSalad
Torque 3d
Unity
Unreal Engine
Mobile Application Development Frameworks
Rapid Application Development Tools
Adobe Dreamweaver
Adobe Flex Builder
Eclipse
Versioning Tools
Web Application Development Frameworks
Agavi - PHP 5 framework
Akelos - PHP framework
Apache Zeta - PHP components
CakePHP - PHP framework
CodeIgniter - PHP framework
Django - Python framework
Halcyon - JSON web application framework
Horde - PHP framework
Kohana - PHP framework
LampLighter - PHP framework
merb - Ruby framework
OpenBiz - PHP framework
Padrino - Ruby web framework
PHP on Trax - PHP framework
QCubed - PHP framework
Ramaze - Ruby framework
Seagull - PHP framework
Symfony - PHP framework
TurboGears - Python framework
Web Application Component Toolkit - PHP framework
web.py - Python Framework
Zend Framework - PHP framework
Zoop - PHP framework
