Source   http://mat.usc.edu/
Related posts:
The Top8 of 2008 CEO Compensation
Excessive Executive Compensation
Global Water Composition
Visualizing The U.S. Electric Grid
California Vs. The WORLD
The History of Spam
Electronic Waste Where Does it All End Up [Infographic]
This is How Your Brain Ages [Infographic]
The Most Popular Design Tools [Infographic]
Dangerous Areas of The Natural World