Armies:

Current

Ulthwe'
Emperor's Children
Slaanesh Daemons
Dark Eldar
Radical Daemon Hunters
Necron

Discontinued

3rd Slaanesh Chaos Cultists and Daemon Army (no marines)
Harlequin
Zombie LatD
Last Chancers
Ulthwe' Strike force

Rule Articles created by Grunt13:

Proposed rules for 40K

Codices

Thyrrus Codex
Eldar Exodites Codex
Eldar Corsair Codex
Harlequin Codex
Codex Zombie Horde

Proposed Units

Last Chancers
Forge World Avatar
Cultists Mobs
Slicing Orbs Aspect Warriors

House Rules

Suppression Fire
Striking Pass
Extended Range

Specialized Horror Scenarios

Zombie Assault
Crazed Mobs
Lurking Terror

Battle Reports

Horror Scenario Battle Reports