For you colonial gamers, here is a page with useful information on British and Commonwealth Orders and Decorations.
This site has some pictures and diagrams from the Sharpe film that centered around La Haye Saint. This is an outstanding resource for anyone wanting to build their own model of the farmstead.
Rules writers pay attention! Mike Willegal has written an analysis of the effectiveness of black powder muskets.
Peter Hunt of the Hong Kong Society of Wargamers has written a set of articles about Naval Warfare in the American Civil War. This is, I think, a sadly neglected period for wargamers. I have a couple of dozen ships in 1/1200 scale, and the games have always been well received.