- Major Links -

Game Programming Center

Amateur Game Developer
http://www.gameprogrammer.co.uk
Simple site, good place for newcomers, the tutorials is nice.

CFXWeb
http://www.cfxweb.net

Flipcode
http://www.flipcode.com
A huge site, has almost everything on game programming.

Gamedev.net
http://www.gamedev.net

Game Developer Center

Gamasutra
http://www.gamasutra.com

Game Developer Search Engine
http://www.game-developer.com

Garage Games
http://www.garagegames.com

Platform/Topic Specific

GNU site
http://www.gnu.org
Get known with GNU and start to look on some projects using GNU.

Microsoft DirectX
http://www.microsoft.com/directX/

NVidia Developer
http://www.nvidia.com/Developer/

OpenGL site
http://www.opengl.org

Intel's gamedev page
http://developer.intel.com/software/idap/
games/index.htm
Lots of very useful stuff here: NURBS,
SetRenderTarget(), clouds,...

Others

Game Developers Conference
http://www.gdconf.com
Every year, ideas are shared on the conferences.
Their proceedings are great resources.

Game Institute
http://www.gameinstitute.com
Online Video Development Courses

Independent Game Festival
http://www.igf.com
Submit your games to win SeumasMcNally award.

International Game Developer Association
http://www.igda.org

General Sites (but related)

Sourceforge
http://www.sourceforge.net
Open Source center, lots 'great' projects hosted here (engines, emulators, games, etc.).

- More Links -

L i n k s - o f - L i n k s

P l a t f o r m s
- DirectX
- OpenGL

D e l p h i - L i n k s
- Graphics

M i s c e l l a n e o u s
- File Formats & Its Libraries
- Game Consoles/Handheld
Playstation, Gameboy, etc.