Here is a link to a forum thread about how to be the person RUNNING a game (GM, Admin) and request that another server do the HOSTING (operating it 24/7 so everyone can connect)
How to Run a Game

Here is (grudgingly) a template for requesting a game on my server. But PLEASE try to go off template. I do not want "just another cut and paste" games.
Example/Template

Here is a link to a notes file I PLAN to incorporate into this page eventually. :)
Things Learned About Hosting

And here is a forum item I plan to link to about how I do linux hosting on a large scale on this system. The information is linux specific but does overlap much of what is needed for hosting on Windows and Mac.
Hosting Dom3 on Linux

This is a really bare little list of features available to people who want to run large long-lasting games on this server. I will clean this up later and make it more presentable.
Hosting Features List

This is a great thread (series of posts) concerning variations possible in the Dominions 3 game. It might be worth looking at if you are interested in running something abit different than the usual Dom3 game.
Sitting on the Fence (about coming back to Dom3)