New Demographic Heatmaps From HotPads

HotPads is a map-based rental housing search site. The site has launched new heatmaps that contain interesting demographic information showing such data as age, income, percentage of renters and average rent. For example, here's per capita income in Mahattan. I have some thoughts on what this means for ad targeting on my blog.

The site previously created mashups for the November U.S. elections.