Games
Reading
Daniel Cook, 
Constructing artificial emotions: a design experiment
Jesper Juul, A certain level of abstraction
General discussion topics and notes
Free Tools
Audacity, Free Recording/Editing url=http://audacity.sourceforge.net
Flan, Flixel Map Making Tool http://www.tbam.com.ar/utility--flan.php
Explosion Generator, Free Version to make explosion animations url=http://www.positech.co.uk/content/explosion/explosiongenerator.html
Random Sound Effects Generator http://www.drpetter.se/project_sfxr.html
Pixen, Mac Pixel Graphics Editor http://opensword.org/Pixen/
Tutorials
Straight Actionscript Tutorials
Kongregate Labs url=http://www.kongregate.com/labs/
Flixel Tutorials
Flixel Official Wiki url=http://wiki.github.com/AdamAtomic/flixel/
- Beginner through Advanced Tutorials and tons of other resources
Basic Flixel Tutorial url=http://www.shadywizard.com/?p=229
- Slightly outdated, but not by much. Core concepts are well covered.
SDL Tutorials
Starting with SDL url=http://www.lazyfoo.net/SDL_tutorials/index.php
- Helpful site for people who have just started using SDL
XNA Tutorials
Tile Engine Video Tutorials url=http://nickgravelyn.com/archive/#tileengine
- Covers how to make a tile engine and add some more complex components
XNA Resources url=http://xnaresources.com/
- Tons of resources and tutorials
2D XNA Tutorial for C# url=http://www.riemers.net/eng/Tutorials/XNA/Csharp/series2d.php
- Quick and interesting tutorial on XNA that includes some neat special effects
ModPlug Tracker (Windows only)
url=http://www.modplug.com/trackerinfo.html
- Program that can be used to make music
- Download the MPT quickstart kit
- Read the TUTORIAL.DOC to get started!
- Also: for "8-bit sound effect", drag 80:Square or 81:Saw into instruments, located at GM.DLS->Melodic Bank 01
AS 3 Code Optimization
Actionscript Wiki - http://wiki.joa-ebert.com/index.php/Main_Page
Flex Profiler Tutorial - http://www.adobe.com/devnet/flex/articles/profiler.html