Welcome to the (R)evolution, a new series that connects you to the people, trends, and ideas defining the future of business, marketing, and media. In episode 8, I proudly welcome Frank Eliason, senior VP of Social Media at Citibank. Frank is recognized as one of the fathers of modern customer service. Prior to joining Citibank, Frank was known to many as the voice behind @ComcastCares, one of the earliest examples of how a business could use social networks to proactively…