I have been co-hosting not really a club,, more a photo meetings, where myself and the cohost,, pick a theme,, and every 3 months or so,, hold a session. People pre-register, and included is usually
a meal.
Create a short lecture on the theme, show examples,, and then right out to try the subject out. We come in, eat/discuss any issues, and then back out for a couple more hours of shooting.
then, about 3 weeks later, we get back together, and take a look at the results, and discuss some points..
People lead busy lives, so trying to organize to a monthly meeting is too much in my case, but sure look forward to the quarterly sessions.
The feedback I get, is that people enjoy the social interaction,, and having a common subject to photograph and then compare the results. It is amazing how much variation can exists within the goup.