"E" == Experimental writes:

E EAA Chapter 1384, Westminster Autumn Fly-In Carroll County

cut

Hmm, if everybody posted their fly-in news, this group would get more
traffic, and most of the announcements would fall on deaf ears, flyins
being a kind of regional thing. The size of the "region" of course
depends on the draw of the flyin.

Anyway, you might have better luck using these services:

http://www.aerovents.com/
http://www.fun-places-to-fly.com/events/

Both allow free submission of your flying event. Your potential
audience has to sign up for each service to be notified, but since
they can narrow the notifications to their region, it's a more
directed service.