Remember when the online talk show "Between Two Ferns" scored a visit to the White House? Host Zach Galifianakis chatted with President Obama about health care, among other things. The episode went viral, of course. It's the type of social media effort Macon Phillips applauds. In 2008, Phillips was the Obama campaign's digital guru. Once Obama won the election, Phillips became the man behind many of the digital innovations at the White House (change.gov and WhiteHouse.gov for example). Recently, Phillips talked with Dean of the Sanford School Kelly Brownell. Phillips is now using his digital talents with the State Department to revamp America's "digital diplomacy."