Thanks for the feedback. I think there's a couple things going on here-- one is the organization that produced the map; and the other is the map itself. I was posting about the map, and not the org that produced it.
I hear you about public hearings being important-- although my personal experience has been that they can be farces as well. My experience is that the real power lies in neighborhood groups, interest groups and other advocacy pressure groups--and that they way to influence local politics is to either join one or to start your own.
And that's what I like about this map. It shows if you live in X neighborhood, you can join X group. It also shows the blank spots on the map-- which to me asks the question "Why aren't there groups in this area?"
I live next door to Cambridge (which is the city that the map covers), and agree more interest groups could be added. But I think it's a great initiative, and think it should be expanded.