But they are actually useful, and serve as a reminder of the unexploited power of home computers.

ECONOMIST: MONITOR

With 60% of the world's unexploited arable land in Africa, Mr Conway says it needs to become more productive.

BBC: Nestle blames biofuels for high food prices

Future prospects are indeed enticing: besides the unexploited mineral resources, business-process outsourcing is booming, already employing some 600, 000 people.

ECONOMIST: Banyan

Mining companies say there are many largely unexploited regions of the globe, including Greenland, the Canadian Arctic, Mongolia and the entire seafloor.

WSJ: Exhausting the Earth's Resources? Not So Fast

What Sanj and his colleagues had discovered is reckoned to be the greatest unexploited reserve of copper, gold and silver on the planet.

BBC: The riches under Mongolia's Turquoise Hill