09/05/2009 05:12 am ET Updated May 25, 2011

ESPN Cracks Down On Employees' Twitter Use

The guidelines say that on-air talent, reporters and writers are prohibited from having sports-related blogs or Web sites and that they will need a supervisor's approval to discuss sports on any social networking sites. They will also be restricted from discussing internal policies or detailing how stories are "reported, written, edited or produced."

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