Here's a couple of things to be going on with:

Contemporary Forum Games:

Erfworld Empires - Rules

Erfworld Empires - Spreadsheet 

Erfworld Empires - Basic Map

Erfworld - Turn 4 of Beta test Map

Fundamental Concepts:

 The Calliari Coefficient

 Ronaldo Calliari's Simplifed Super Easy Random Number Generator

Battle Reports

6mm Napoleonics 

A Tabletop Wargame Idea:

 Engage! (HTML)

 Engage! (Word)

Older Forum Games:

Forum Games' Forums

City State - Rules

City State - Spreadsheet  

High Adventure - Rules 

High Adventure - Spreadsheet 

Grand Realms - Rules

Grand Realms - Spreadsheet

An Archive of Older Stuff can be found at:

The Old Home Page