Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.

Yep, after I closed out the computer last evening I remembered Jim's work. I would consider his a must have for sure as he does some beautiful custom work in his sceneries that are actually better than some freeware work I've seen and much better than anything I'm doing. I don't see mine as rivaling payware because I don't use custom buildings. Mine all use default and scenery object libraries done by others. I appreciate the plug tho kiwikat, lol.Falcon409 here has made some really nice airports!
There's also jdhaenens' excellent works.
Both of these guys' freeware easily rivals many payware airports I have seen. I'm sure there are many more excellent authors as well. Scenery addons aren't my biggest thing.
I've got to agree with Joe.:mixedsmi:
If you're into GA, Try Manny Mahadevan's 52 Foxtrot, or my Wiley Post (KPWA) for a mid to large GA, or Grassroots Airpark (06FD) if you like a grass strip.
For military, NAS Pensacola (ver1.2), NAS Whiting Field North and South, NAS Corpus Christi, and NAS Fallon. NAS Jacksonville, NAS Oceana, and NAS Lemoore are available, but getting a little long in the tooth.
Retro: Floyd Bennett Field (New York City).
Unfortunately, there are few folks doing custom modeled USA freeware for FSX. Art Poole comes to mind. I'll add others as I run across them.
Jim