They're perfect for "many-to-many communications, " Byrne says, and can be structured hierarchically.

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What's happening here is that as a result of the development of fiber-optic communications technology, many middle-income jobs are being outsourced to other countries.

NPR: U.S. Factory Workers Competing in a Global Market

Many of the cost advantages will come from transferring communications-related expenses from a company to an employee, while real productivity gains will depend on the temperament of individual employees and how much more they are willing to work when all barriers have been removed.

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