Histoire et Figurine
A very interesting site with a good deal of information. I really like the illustrations and colour charts.
War Times Journal
some rules and articles.
The Foundation Napoleon
A very cool site, heaps of information. Good portal to articles that may be of interest.
Napoleonic Titles and Heraldry
Long article, old school, on what it says.
Prussian Military History
A very good site with lots of prints, notably Richard Knotel. Its in German and google translate can only do so much to help find your way around the site. Worth the effort though.
Like it says, some free digital versions as well as a nice bibliography.
Institute on Napoleon and the French Revolution
Want to get serious with your studies? Check out the Institute at Florida State University.
Want to get your own uniform? Here's the place.
The Portuguese Army at the end of the Old Regime
Lots of info on the Portuguese army, specifically during the Napoleonic wars.