I came across this website from NZ: http://www.wikarekare.org/
This community is located in hilly area providing internet access to whole community. They seems to have full administration solution with usage data and billing. It was time worth spent reading all details.
I liked their simple antenna design anyone can build with very basic parts. They claim 14Dbi antenna gain which is amazing for such a simple design.
http://www.wikarekare.org/Antenna/bicircle.html
Thanks.