Battlelore Napoleonics are a set of adaptations of the Battlelore Fantasy/Medieval card driven miniatures/board game. I like the Battlelore system a lot.
Beware: this site has an obnoxious pop-up video ad embedded in it.
The Miniature Wargaming Editor
American Revolution Flags
A Miniature History of the American Revolution blog has a set of printable flags for the Continentals.
Pz8 Coastal Rules
Pz8 is a series of two-page wargames rules. Among them are is a set of free wargames rules for coastal actions.
Giant Stompy Robots Rules
Meca Tac – The Giant Stompy Robots Edition is a set of free wargames rules for Mecha battles.
American Western Frontier Photos
For Wild West fans, here are a bunch of period photos of the American West.