Have you thought about send an email to all flying schools in the UK with a A4 poster attached?
Do one in colour and one in B&W. With web address etc on it.
Or email to club membership secs asking them to forward on to the female members.
Most of the large flyin's are done this way and we always used to print them and then stuck them up.
The only other way i can think of is relying on your current members to always take a handful of flyers and app forms whenever they do a land away. And spread the word that way.
MJ