With Doom3World not back and knowing the admin has a busy and fulfilling life (wife + kids + good career can do that to ya. :) ), it was thought a good idea to start up some new forums. So, id Tech Forums was the answer. It's got sections for the id Tech engines from Doom to Rage. Feel free to sign up and contribute to the knowledge of id Tech modding.
There's several other very good Doom and Quake 1/2 (Hey Q2Cafe!) modding forums out there so I don't expect to much business on that, but there's no better place to talk about Doom 3 modding, eh? :)