Celebrity Central / Top 25 Celebs
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Published: Thursday March 19, 2015 11:00 AM EDT
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Date: April 17, 2009"HI TWITTERS . THANK YOU FOR A WARM WELCOME. FEELING REALLY 21st CENTURY."– Oprah Winfrey, who invented a super-cute nickname for Twitter users while learning the ropes on an all-caps Internet journey (been there)
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