OK, my next project (aside from Game-Chef which starts this weekend) post more information about the city states and what goes on in the zone itself.
However, I'm a bit torn on how to organize this segment. One way I've considered is to name a state, and then give the information about it. The other is to give categories and tell how the city fits within.
Ie, should there be one page dedicated to military forces, with an overview and mentions of each city state, or should each city state page have a section about its military.
One thing I want to avoid is hyper-links, since this would ideally be set up like a dead tree book. No sense is getting lazy about layout.
(Hmm, theres also that Sentience game I never finished, Octal, Sea Wolves, spring cleaning... why does nothing ever get done around here?)

probably not the answer you were looking for
I think ultimately to be the most user friendly, you should do both. Possibly describe each city state in detail with specifics and then do a one page this is military, this is commerce. One of the problems I have with many games is that there is often bits of information I want but they are hidden away in different locations. When two cities go to war, I want their information in one place, but when my players are exploring a new city, I want all the information on that city in one place.
But if you are going to be pick one, I'd do it by city states.
And something (randomly placed), I just have to ask. Have you ever tried getting something published? Personally, and value my opinion as you choose, I think with alittle polishing you could probably publish D&B.