ACS Data Users Group

While not GIS, I found this chart to be a very interesting visualization of migration data from the 2012 ACS and did not know where else to post the link:

vizynary.com/.../

If you mouse over the name of a state the graphic changes to display just flows in and out of that state. Only flows over 10,000 people are shown.

There is a short article in The Atlantic about this effort:

www.theatlanticcities.com/.../

Perhaps this group could cover not just GIS but any visualization of ACS data.

I agree. It is a very effective presentation. I would love to know how it was done.

I was at the ESRI UC and saw a presentation where the Census showed their Census Flows Mapper: flowsmapper.geo.census.gov

This allows you to graphically look at migration patterns at the county level. I remember them talking about creating some API's and allowing developers to more easily use the data.

In any case, the state to state visualization is very nice.

I got in touch with the authoer Chris Walker and this is what he told me about the graphic: "I utilized a JavaScript library called D3.js (http://d3js.org/) that allows you to create really powerful interactive data visuals. It was created by Michael Bostock who is currently at the New York Times graphics desk. A lot of those really cool New York Times interactive graphics you’re probably familiar with were created with D3.js. The library is open source and there is a strong developer community."

Mike's personal website is at: http://bost.ocks.org/mike/. You can find examples that he's posted in Gists (github), which you can fork into your own repo. He's also the maintainer of http://bl.ocks.org, which is a github code viewer. Good luck.