Not a music-related thing, but a really cool glimpse at pop culture in America. NY Times took Netflix rental data in top cities (and their 'burbs) across the country and created interactive maps showing the most- and least-rented movies by zip code.
It's amazing how hard and fast the delineations are between neighborhoods, many of which are separated by race and socioeconomic differences. Probably not a surprise, but when you see it in blocks of color like this it's strangely concrete (for instance, compare the data for Tyler Perry's "The Family that Preys" from a city like D.C. or Atlanta with that of Seattle; or even within the NYC map compare Manhattan to East Brooklyn). Anyway, I found this interactive feature really interesting to play around with. Thought you might too.