Dave Carroll has a publicist. I'm going to say that again. Son of Maxwell Dave Carroll, the Nova Scotia folksinger who needed only $150 and some creative friends to turn a beef with a US airline into a mortifying (to the airline) viral video that drew nearly 12 million pageviews, now has his own publicist. Eliza Levy is a pleasant sounding young "assistant to the publicity team" at Media Connect, a division of Finn Partners of New York. She's handling PR for Carroll's newly published book, United Breaks Guitars: The Power of One Voice in the Age of Social Media, and his...