"There's a lot of method behind the madness, a lot of rationality behind the moves for airlines, " said Ike Anand, Expedia's director of airline strategy.

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There are a lot of reasons to criticize that method and sometimes it is not 100% of gross, but some lesser or in rare cases higher percentage.

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In the couple of decades which have passed, courts have put some limits on business method patents but have allowed a lot of them to remain powerful weapons which motivate companies like AOL and Microsoft to buy and sell.

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The combinatorial method, if it works, should make it a lot less painstaking, and a lot more profitable.

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Entrepreneurs that shun this time-tested method of raising capital, because their investors might make a lot of money, do so at the peril of not achieving their stated goals, which might just include serving the very community Professor Yunus is nobly focused on: fully one half of the world's population.

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