(Website: this need not be complicated or cost anything. A templated
freeby gadget such as those provided by http://www.blogspot.com/ would be
ample, and very easy to manage.)

I've been using a site called posting station to manage my garden club.
It's been great because it has a system that keeps your club members in
contact. Kind of hard to explain.

http://postingstation.com

Good luck with the club!