Given that you have a bit of time, enough for some back-and-forth, how about a forum? http://www.city-data.com/forum/new-york-city/ http://www.city-data.com/fo

Given that you have a bit of time, enough for some back-and-forth, how about a forum? http://www.city-data.com/forum/new-york-city/ http://www.city-data.com/forum/new-york-city/ Now, aggregating that data to make it fast for future people (while being forward about the age of the data) might be an interesting business.