Some suggestions:
Gothmog's quick reference guide, pdf format, correct up to Version 2.06 I think.
http://members.cox.net/nelsons/Domin...erence_RC1.pdf
Sunray's guides to Jotun Iron Woods theme, Man, R'lyeh, and Tien Chi Spring & Autumn theme by Zen.
http://www.freewebs.com/dominions2/
And finally, search the forum for specific nations. Tedious but works...
I realize none of these sources give everything you want, but it may be sufficiently good starts.
Hope this helps somewhat.
-Gateway103