Special thanks to my friend Jonah Berger, author of the awesome book "Contagious: Why Things Catch On", who thought that the viral nature of These Come From Trees stickers would be an interesting thing to check the virality of.
In the case of this animation, it's purchases since 2009, overlaid on their Zip Code, and weighted by purchase size.
So you can see when large purchase shows up (often times for a University, like the University of Washington, in Seattle), and then how that is preceded by certain purchasing behavior, and then succeeded by what appears to be accelerated purchasing behavior.
Like check out how Wisconsin goes crazy after the initial large purchase in early 2011, having previously been more sporadic.
Neat stuff!
