A friend pointed me to this site in Cincinnati- A small group. The idea is put in practice in my neighborhood- The South Park Historic District- where a small group of committed citizens works together to strengthen our neighborhood. This organization helps small groups be more effective. Take a look at the site.
Here is their opening quote by Margaret Mead:
“Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has.”