The age-old marketing profession felt ripples, and then waves, a couple weeks ago during a gathering of 2,800 customers of HubSpot, a six-year-old marketing software company. The conference, titled Inbound 2012, was more of a rallying call than training. Even guest musician Cyndi Lauper joined the discussion and explained her revelation as, "I stopped listening to the record companies and started listening to my fans."
