This tutorial shows how to make modular cave tiles that also serve as hills for wilderness games.
The Miniature Wargaming Editor
Making Flocked Magnetic Unit Stands
The WAB Corner Blog has a nice post on making terrained magnetic bases to hold four figures based individually on washers.
From Lexington To Yorktown AWI Rules
From Lexington To Yorktown is a set of free wargames rules for American Revolution battles. Each model equals 10 infantry.
Advance To Cover World War II Rules
Advance To Cover is a set of free wargames rules for World War II battles. The scale is battalion level where one figure = one section, or company level, where three figures = one section.
Medieval Skirmish Rules
Lord Merlin has a set of free wargames rules for large (70mm or 1:20) scale figures. There are three levels to this skirmish rules set: “simple”, “better” and “more realistic.” There also are some cute pictures of a “knights of the dinner table” game.