Digital Out of Home (DOOH) advertising is about to boom for all of the obvious reasons: cheap and pliant screens that can go anywhere combined with ubiquitous connectivity and mobile devices for better interactivity and tracking. DOOH's potential remains to be seen. But P2P payment system Zelle is an early believer, as it maps well against the it's unique branding challenge. Senior Director of Brand Marketing, Joshua Fajardo, explains what a DOOH strategy looks like.

Zappos was D2C before D2C was cool. Shortly after its launch in 1999 as Shoesite.com, it answered the burning question, who the hell wants to buy their shoes online? Indeed, the company soon became the poster child of ecommerce's promise. Part of company mythology involves legendary customer service. In fact, when Zappos's marketers started speaking at our Insiders Summits over a decade ago, they bragged about epic customer calls that lasted in some cases eight hours.