Today on PPC Rockstars: PPC Summit’s Mary O’Brien

PPC history buffs: don’t miss today’s episode of PPC Rockstars, at 4:00 PM EDT. Hear me interview Mary O’Bien, founder of the excellent PPC Summit conference series, and one of the true pioneers of PPC. Learn how a chance encounter with Bill Gross in an elevator launched Mary’s career and gave her a front-row seat at GoTo, Overture and Yahoo.