How to...figure out who's actually out there

Social Explorer is a tool that shows population distributions for the US based on census data. It's cool because the map scales down to a county-by-county level and because it offers quite a large variety of characteristics from standard marital status info to some pretty interesting categories for employment. High factoid potential: South Dakota has an unmatched population of family households headed by women.

It’s got easy-access trend analysis, too, because information dates back to 1940 by decade.

Other "How To..." from the Fallon Planning Blog-Time Life Compendium
...Track your socially contagious virals
...Make the Digg top 10
...Make a viral video