Here you goes:
This is a compilation of links to useful stuff - you'll definitely want the Ultimate Mapping Resource Pack.
http://im.x0.lv/welcome/
This is the official wiki for Hammer and the Source SDK.
http://developer.valvesoftware.com/wiki/Team_Fortress_2_Level_Creation
This is a compilation of links to useful stuff - you'll definitely want the Ultimate Mapping Resource Pack.
http://im.x0.lv/welcome/
This is the official wiki for Hammer and the Source SDK.
http://developer.valvesoftware.com/wiki/Team_Fortress_2_Level_Creation