I've added a bit of content, although it's mostly scattered about. Orders of Battle and Maps particualarly.
The information on the Ural Cossacks, to which I have added some material on their battles, has its own sub-section now.
So I decided to rewrite the site in css. I'd done that to my other sites ages ago, but the sheer amount of work put me off. (I started the site long enough ago that only professionals used css.)
While I was at it, I updated all the links – oddly the sites linked to were almost all still live, but an enormous number had changed address.