If there isn’t one in your city yet- be the first to create it!
Joshua lays the ground-work on a fantastic craft beer movement activity: HomeBrew Tours. Small groups of people orangized for a day of intimate beer sampling with the people who hobby on beer instead of work on it. What a better way to get more people brewing then to show them their neighbors! Keepin up with the Joneses, as they say, might bring people around to making the most of their Sunday afternoons.
I'll make one for Paris/France! Although for the moment I only know one home brewer and myself so the tour will be rather short, throwing in some nano-breweries might be acceptable.