Yes...this site is a good one...particularly if you have specific questions that you need an answer to. Also:

The pbw has some good modding resources.
http://seiv.pbw.cc/graphic/index.jsp

"Dubious Strategy Guide" is helpful if you are looking for general gameplaying tips and may be downloaded from here:
http://forum.shrapnelgames.com/ubbup...ategyGuide.zip