Vintage Wargaming has some scans of instructions for 1910 era naval landing parties. It’s a nice look at the world back then — and gave me some interesting ideas for games.
John Bear Ross, digital sculptor extraordinaire, offers HELLION, a set of universal miniatures rules.
From Baccus Miniatures comes Gettysburg At The Gallop, a set of free wargames rules for the American Civil War in 6mm.
Command Combat Civil War: Bull Run is both a rules set and a scenario for playing the American Civil War.
I wonder why this hasn’t been done before. Eight Bells is a set of paper rules, combined with an iPhone app for playing Napoleonic naval games.