Chance are, if you have attended a business event anytime in the last ten years, you will have watched someone play the ‘Did You Know?’ video full of astonishing facts about the digital world. The man behind that video, the most viewed social media clip of all time, and a number of bestselling books such as ‘Socialnomics’ and ‘What Happens in Vegas Stays on YouTube’ is Erik Qualman. And it was in Vegas, strangely enough, that Erik and I caught up to chat about managing reputation in a fully transparent world, the importance of investing in human relationships, the future of automated sharing, and mobile voting, whether a Yelp for human beings is a good idea, and the five habits of great digital leaders.