Sorry for another fluff post, but here's a great resource for military history concerning this time period.
There is a great article on the evolution of cavalry towards adopting pistols over lances. Which reminds me that I need to work lances into my weapon system even though they had fallen out of favor. A long multimedia presentation of siege tactics and their evolution through the 16th and 17th centuries is an excellent feature. Tactics and formations nuts can go hog wild over schematics and animations of 17th century troop formations. Finally, an in-depth presentation of the Battle of Breitenfeld showcases a pivotal battle of the 30 Years War and the evolution of field artillery tactics.
More weapons posts coming up soon.