Keynote Conversation with Dick Costolo and Emily Bell - ONA12 by Online News Association published on 2012-09-21T21:14:52Z Join Dick Costolo, Chief Executive Officer of Twitter and Emily Bell, Professor of Professional Practice at Columbia Journalism School and Director of the Tow Center for Digital Journalism, for a luncheon conversation exploring the social media giant’s financial and cultural impact on digital media and plans for the 2012 U.S. Presidential election in November. Genre Conference Comment by Manolo Espinosa Remarks about building into twitter begin here 2012-09-22T03:54:21Z Comment by Kristina Weise Tom Brady: http://www.boston.com/sports/football/patriots/extra_points/2012/09/tom_brady_no_1.html 2012-09-21T23:52:48Z