We decided to exclude the traditional list of "simple machines, " which includes the lever, pulley, wheel and wedge, since most other tools employ some form of simple machine--a hammer is basically a lever, and an axe is essentially a wedge.

FORBES: Methodology

Essentially Citigroup is contesting a decision made by Mr Bondi to exclude it from the list of Parmalat's creditors, a step that would, if upheld, keep the bank out of a future debt-for-equity swap prior to Parmalat's re-flotation on the stockmarket.

ECONOMIST: Parmalat

Krugman, too, has lambasted austerity, so by refusing to exclude Stiglitz from the idiots list, he sends a mixed message.

FORBES: Which Nobel Economists Are Idiots?

What insurance provider in Northern Ohio is going to exclude the Cleveland Clinic from its list of providers?

FORBES: Are Insurance Companies the Key to Lower Prices?

At their best, they reflect the tastes and knowledge of the list-maker, but will no doubt exclude or forget equally-deserving sights and destinations.

FORBES: Lonely Planet's Comprehensive List of Lists