Mod Group

Source Modding group for level designers, scripters, sound engineers, texturers, writers and project leaders.

Oh, and playtesters.

Singleplayer and multiplayer modders welcome.

Discuss anything modding here and join for special mod-related events etc.

==Useful Source Modding Websites==
Valve Developer Wiki - http://developer.valvesoftware.com/wiki/Main_Page

Interlopers - http://www.interlopers.net/

Edit-Life http://www.editlife.net/

and for publishing:

ModDB - http://www.moddb.com/