Links

Half-Life News Sites

PlanetFortress For all that is Fortress
.id Invade & Defend Guild
The VERC Collective The Valve Editing Resouces Center

Downloads

Hammer 3.4 Valves very own Half-Life map building program, what the pros use to make maps
Zoners HL Tools These are the files that compile your TF maps for you, If your still using QCSG, QBSP, etc I suggest you change to these tools right away
Wally THE Texture editor for Half-Life, Quake, and such like games
Half-Life Model Viewer A nice program that lets you see the Half-Life models, rotate them, and see all the animations each model can perform