I was reading the latest issue of the Corona Genealogy Society newsletter, http://www.coronagensoc.org/index.html, edited by Len Enlow and found a website I thought I would pass on.
War Department Papers,
www.wardepartmentpapers.org, is a website that provides War Department documents from 1784-1800. These documents were previously believed to have been destroyed in a 1800 fire, but through searching archives around the country, this collection has been pieced together. The documents are digitized and fully searchable.