I'm on the ACGA's listserv, and read the great ideas that the members post for each other. Our community garden will open in September, and one of our first official actions will be to join ACGA. I find the sharing of the members so helpful. If someone else hasn't already solved a problem, ideas will be posted for people to try. These ideas are bearing fruit all over the country, and I'm so glad one of my friends recommended this group to me.
I've helped to start community gardens at my church (half English speakers, half people learning English) and in my neighborhood (growing food in public spaces that anyone may harvest). I'm a great internet researcher so feel confident in saying that the American Community Gardening Association list serve is an exceptional source of information, resources, problem solving, and more.
ACGA is as "selfless" as a non-profit can be - always keeping in mind its mission and the folks who benefit from it. As a member, I can access a wealth of information on food gardening in a variety of ways. (Non-members can as well.) I like to refer to community gardens as "sustainability made visible," and ACGA helps sustain the sustainable across the board.
Since the day I joined I was given specific information on setting up and running community gardens from members on their email forum. The members are supportive, intelligent and helpful.
They also offer free seeds upon joining, a free subscription to their magazine and an annual conference that looks like it will be amazing.