jvetrau found this picture first.

seen on

• http://www.informationisbeautiful.net/2009/interesting-easy-beautiful-true/
• http://visualizeus.tumblr.com/page/17
• http://www.informationisbeautiful.net/page/5/
• http://www.psfk.com/2009/12/pic-an-infographic-about-infographics.html
• http://dataviz.tumblr.com/post/248627294
• http://www.informationisbeautiful.net/
• http://infobeautiful.s3.amazonaws.com/good_infodesign_550.png

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