In a racket that has seen its share of miracle cures come and go and come again, NutriSystem has finally evolved into a stripped-down, predictable business of selling small, safe and idiot-proof portions of food.

FORBES: Before... and After

The world has watched admirably at the "wonder from down under, " a seemingly recession-proof economy that avoided a downturn after the global financial crisis and that has not experienced two successive quarters of negative growth for20 years.

BBC: Australia's two-speed economy threatens to hurt growth

The charitable ways of Gates and Buffett also provide living proof that the "trickle-down theory" is in fact reality.

FORBES: Magazine Article

Many African dictators saw in Mr Meles another feature bolstering their own positions: a proof of the need for top-down government.

ECONOMIST: The Horn of Africa after Meles Zenawi

The Senate had begun its investigation in 1932 at the behest of Herbert Hoover, who wanted proof that a shadowy conspiracy of short-sellers was driving down the market and destroying his presidency.

ECONOMIST: How Ferdinand Pecora won the blame game

With the winter bearing down, we've put together a series of guides explaining how to winter-proof your home and how to save money with a programmable thermostat.

ENGADGET: Inhabitat's Week in Green: Dyson Spheres, bladeless wind turbines and airless bike tires

If I were president of the United States, I could do something about that by deploying a fence, by deploying a virtual fence, by having a BorderStat system like my COMSTAT system that brought down crime in New York, and just stopping people from coming in, and then having a tamper-proof ID card.

CNN: Giuliani's responses at the CNN/YouTube debate