Reporters' Roundtable: Twitter's business model (podcast)[ Fri, 23 Apr 2010 15:18:00 PDT ]Twitter finally has a business model: selling search ads. Yes, after all this waiting, Twitter is pulling a Google. To discuss the long-awaited monetization scheme, Rafe Needleman is joined by CNET's Caroline McCarthy, and The New York Times' Claire Cain Miller.