Flowing Data has turned us on to a fascinating way of looking at migratory data.  Even Westvang took 8 million tax returns from Norway and pulled out information about who was moving where.  And then he animated that data. It certainly is compelling to watch, but it is more than simply graphically compelling.  Westvang:

When slowing the animation down and filtering for certain demographies it becomes more useful. At its best laymen, like myself, can visually perceive facets of the national Norwegian migratory process that before were only available through the statistical calculations of researchers in demography.

Of course, Norway is a somewhat unique economy.  The migratory patterns there don't shed a lot of light on what is happening in places like the U.S., but we share this because it presents an interesting model for conveying data on mobilization. 

Deluge from even westvang on Vimeo.

Now, if only we could get somebody to visualize mobilization data in the US before and after the Great Recession...

Read more about Westvang's process here.