Thank you, New York Federal Reserve Bank! Your Urban Dynamic in New York City conference produced a wealth of wonderful papers about our fair city, and thanks to the December issue of your Economic Policy Review magazine, many of them are online! Our favorite was the sexily titled "Geography of Entrepreneurship in the NYC Metrpolitan Area" [PDF here], which contained this wonderful map of factory density in the city-- as well as maps of wholesale and service-job density. Amazing diagrams! Other great papers included "Urban Colossus: Why is New York America's Largest City?" by Edward Glaeser [PDF here], and a fun essay by Kenneth Jackson, "The Promised City" [PDF here.]
If this sort of stuff is your bag, you might want to consider enrolling in Barnes and Noble's online course "Empire City: A History of New York" (beginning January 9th, and FREE!)