Interesting Visualization Of ACS Migration Data

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.