Inside the Twitter lives of athletes

INDIANAPOLIS - DECEMBER 7: Paul Pierce #34 of the Boston Celtics smiles before the game against the Indiana Pacers on December 7, 2008 at Conseco Fieldhouse in Indianapolis, Indiana. The Celtics won in overtime 122-117. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this Photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2008 NBAE (Photo by Ron Hoskins/NBAE via Getty Images)