Here are the primary links that I've used to find information on mapping and also the latest in the mod community. Hope they'll help.
 
 
 
 
File Planet The largest mod storage around. This is the best place to publish your work.
 Blues News The best source on the pulse of the general mod makers and players.
QERadiant The editor that makes it all happen. This is the key to mapping. Latest build is GTK
 Arena Master Turkey is the man with two utilities that make life easy. There is a PK3 file creator, and an Arena file editor.
 
 
 
 
 Planet Quake Keeps tabs on everything around Q1, Q2, & Q3.
 Quake 3 World MPlayer's site regarding mods and builds of the Quake engine.
 3D Cafe Very cool site dedicated to graphics freaks. Some nice textures are available.
 Game Art Another graphics site for mappers and 3D artists.
 
 
 
 
 MMEP Want to make maps with the Macintosh? Get busy with this link!
 3D Barn A sweet source for a bounty of textures and art work.
 Q-Workshop 3 Back on the old PQ. Another great editing site.
 Rust-Game Design Great selection of prefabs and editing info.
 
 
 
 
 Q3F Best damn mod on the net. This baby kicks ass and you don't have to have a high speed connection to do well.
 Crypt od Decay One of my fellow mapping sites on the big fluffy. Check out some mapping goodness.
 Q3A Shader Editor A fantastic utility that allows you to manipulate and even create your own shaders.
  Polycount A site dedicated to 3D modeling. Supports Q3A, Halflife, Q2, Q1, and a bunch of other games.
 
 
 
 Illearth A site that has a variety of Q3A maps and models. 
 LVL A great review site for new maps in the Quake genre. 
 Tom's Hardware Guide The best site covering the cutting edge of hardware. 
 GameSpy The browser of choice when gaming online. 
 
 
 
 
 3D Action Planet Get the lowdown on the latest in shooters. 
 Quake Files A site that focuses on Quake and utilities. 
 The Rail Arena Mod with one of my maps in the melee!
 3D GameLink This site has it all for Q3A, HalfLife, and Unreal.