Hiya BozoTC
I have a huge collection of airfield overhead photos and airfield taxiway and runway layout diagrams.
I have collected them over the years basically thru just lots and lots of Googling and following links and sub links etc, etc. Naturally the easiest to find are representations of the modern airports and airfields. As Hagar pointed out, Googling on a particular airport will usually bring you to the airport's web site which normally includes a layout of the airport.
Airfields diagrams and layouts from WWII, especially in the Pacific Theater are much hadrer to come by and require more exhaustive searching- but hey, as far as I am concerned the research isf my favorite part of making add on airfields.
Here are a couple of good links that give you the basics of modern airport runways and locations.
This first, as far as I remember gives you the option of searching by name or browsing by state or country. No diagrams but solid runway orientation and location information and altitude and surface, etc. etc..:
http://worldaerodata.com/Here is another that is very good for USA airfields: type in a city name and it will give you a listing and diagram of the taxiway/runway layout and more for each airport in and around that city:
http://www.aopa.org/asf/taxi/For the older stuff- its just a matter of digging: you can check out the links and info page at my modest little website and see if anything there might help.
http://home.earthlink.net/~crismahn/Publish/index.htmlAnother good source of info for obscure little WWII fields in the Pacific is FS2002- surprisingly. Most of the airfields in the Pacific today were airfields built during WWII. So many times FS2002 is a good source for locations, headings and a rough airfield layout- especially if you have FSNavigator attached.
Like I said, it really is a matter of digging and digging further much of the time- you never know where something useful might pop up.
Have fun and good luck.
Chris