Read the whole interview here, including comments on self-regulation and the competitive set.
About the history and current feature set:
I started with a very simple, universal opt-out tool that was an instant hit with consumers. We now manage preferences for well over a quarter-million people, and have launched nearly a dozen other tools and resources: A comprehensive database of ad company policies and certifications, several bookmarklets and add-ons to monitor tracking activity and to maintain opt-out and opt-in choices, a best practices checklist for ad targeting, a free site-scanning service and seal program for websites to monitor and certify their third-party data practices, and a new experimental service for consumers to see and control their ad profile in its entirety. These all leverage a common data set and preference platform, and we’re just getting started.