In a famous article, Hayek writes,

Assume that somewhere in the world a new opportunity for the use of some raw material, say, tin, has arisen, or that one of the sources of supply of tin has been eliminated. It does not matter for our purpose—and it is very significant that it does not matter—which of these two causes has made tin more scarce. All that the users of tin need to know is that some of the tin they used to consume is now more profitably employed elsewhere and that, in consequence, they must economize tin. There is no need for the great majority of them even to know where the more urgent need has arisen, or in favor of what other needs they ought to husband the supply. If only some of them know directly of the new demand, and switch resources over to it, and if the people who are aware of the new gap thus created in turn fill it from still other sources, the effect will rapidly spread throughout the whole economic system and influence not only all the uses of tin but also those of its substitutes and the substitutes of these substitutes, the supply of all the things made of tin, and their substitutes, and so on; and all his without the great majority of those instrumental in bringing about these substitutions knowing anything at all about the original cause of these changes.

An article in the weekend WSJ (sorry no link; sub req) reads like Hayek writing from beyond the grave; the first two paragraphs:

Soaring energy prices have yet to take a big bite out of economic growth, but already, the high cost of energy is changing corporate behavior.

In industries from airlines to glassmaking, companies are curbing usage, revamping machinery and shifting production schedules to offset energy costs. Family-run brick maker Pinehall Brick Co., for example, has started putting slightly larger holes in its bricks because lighter bricks take less power to produce.

ATSRTWT--there are several other nifty examples such as UPS adjusting preventive maintenance of its delivery fleet to Summitville Tiles (of OH) shifting its production schedule from winter months to summer (when natural gas demand is lower and natural gas prices decrease).