Spring Grads

Twitter's Dick Costolo speaks during the first annual Chirp, Twitter Developer's Conference in 2010. (Getty Images/Justin Sullivan)

Twitter CEO Tagged As UM Commencement Speaker

The University of Michigan says that Twitter chief executive Dick Costolo will be the commencement speaker at the school’s May 4th graduation ceremony in Michigan Stadium.

WWJ Newsradio 950–03/18/2013

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