Excellent post on the visualisation of financial data: check out how much value was knocked off the value of the stock market: 112 countries.
The SocGen rogue trader managed to annihilate an amount of money that surpasses the yearly output of the economy of 112 countries, among them Madagascar, Mozambique, and war-torn Afghanistan, all of which have population sizes larger than 15 million.
on [From Wolfram Blog: Losing a Country's GDP in the Financial Markets]