Source   http://www.guardian.co.uk/
Related posts:
History of Social Games [Infographic]
NASA Fun Facts About the Space Shuttle Orbiter
World Gold Reserves and Producers [Infographic]
2011's most expensive football transfers [Infographic]
How Big Is Your Byte: Twitter, Facebook And More In Bytes [Infographic]
Electronic Waste Where Does it All End Up [Infographic]
Women @ Work – Sound Bites, Statistics of Women Who Lead [Infographic]
Just How Big is Apple [Infographic]
What Can Be Made from One Barrel of Oil [Infographic]
Worlds Largest Factories