This is the map of Nielen [Designated Marketing Areas](http://en.wikipedia.org/wiki/Media_market) using D3.js. Hover over for data related to each area. 

See map [here](http://bl.ocks.org/simzou/6459889)

See code [here](https://github.com/simzou/nielsen-dma/)

###Credits

* Map adapted from Mike Bostock's [map example](http://bl.ocks.org/mbostock/2206590)
* Topojson made by converting shapefile from [here](http://geocommons.com/overlays/306767) to topojson via [Mike Bostock's instructions](http://bost.ocks.org/mike/map/)
* Nielsen rank and TV data via [tvb](http://www.tvb.org/media/file/TVB_Market_Profiles_Nielsen_Household_DMA_Ranks2.pdf)

###Notes

* Some areas are shaped really strangely (such as a slice of Nevada being part of the Denver media market) but that is really how they are divided