Player Models - Valve Developer Community

Since Valve is updating all the player skins, I would love to see the Arctic Avengers back in the game : r/GlobalOffensive

Counter-Strike: Global Offensive/Mapper's Reference - Valve Developer Community

Source SDK, Half-Life Wiki

GoldSrc, Half-Life Wiki

S&box - Valve Developer Community

Rigging in XSI - Valve Developer Community

Weight Map Editing - Valve Developer Community

Steam Community :: Guide :: The Big Amazing Guide to Lighting!

Character (shader) - Valve Developer Community

Steam Community :: Guide :: Source Engine Repository

npc_citizen - Valve Developer Community

Propper - Valve Developer Community

Viewmodel - Valve Developer Community

Models on VGUI Panels - Valve Developer Community