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Like the offices of many Silicon ­Valley startups, Twitter’s is silent as programmers type on keyboards and stare at screens.

But Twitter is particularly quiet due to lack of work space partitions. To have a private conversation on the phone, for instance, cofounder and CEO Jack Dorsey (below) must go to a different part of the office.

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Tagged: Business, Twitter, social networking, Web 2.0, Evan Williams

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