For all my NYC readers, this site should interest you. Created by Infographic mastermind Stamen in association with Center for Urban Pedagogy,
Envisioning Development breaks down the household incomes by neighborhood in the Boroughs of New York. Note that these numbers aren't directly indicative of rent prices, meaning that even though most of the fat cats on the upper east side are spilling their leftover caviar on their 3 million dollar imported Italian marble floor, there are also regular schmo's paying $1600 bucks for a sweet studio (CHEAP PLUG: Check out
John's Downtown Cribs for the best listings in NYC!)

Check out the
Fast Company article.