Is it Cancer or Walmart?

This is actually a still that I pulled from here, but you’ll find it more interesting if you go to the Flash animation showing the spread of Walmart in the United States, starting from one location in 1961 and growing to 3176 in 2006. Very cool.
You can click in as deeply as you want and click ‘n drag the map. I wish it had an embed code, but didn’t want to go as far as trying to pull the SWF and place it here.
This animation is now nearly a year old, and nearly three years past the data currency, so who knows how many stores there are now – and this is only in the US. It really reminded me of a disease or tumours in the way it grew and spread. And, that’s kind an appropriate analogy in my mind.