Source  http://npd.snd.org/
Related posts:
Global Map of Social Web [Infographic]
Human Development Report 2009 [Infographic]
How does pollution impact on people's lives? [Infographic]
Tsunami hazard
Homeschooling by the numbers
Traffic-Related Deaths Around the World [Infographic]
America's Report Card [Infographic]
World's tallest tower - Burj Dubai [Infographic]
33 Ways to Visualize Ideas
Cloud formations