David Alston of Radian6

John C. Havens interviews David Alston, VP Marketing & Community, for Radian6. A description of Radian 6 from their site: A brand is now defined as the sum of all conversations taking place amongst users and it's happening regardless of whether you are part of these conversations or not.Radian6 is focused on building the complete monitoring and analysis solution for PR and advertising professionals so they can be the experts in social media.