Local digital advertising revenues will grow by 13 percent by the end of 2012, according to statistics from BIA/Kelsey. The US Local Media Forecast 2011-2016 report also predicts that several local media segments will exceed this overall growth rate. Mobile search is set to grow by 77 percent, for instance. Meanwhile, online video by 52 percent, and social by 26 percent. Additionally, digital ad revenues will be the only source of growth for newspapers, according to BIA/Kelsey. The forecast also suggests that digital will account for 25 percent of the local ad market in the future as spending on various media segments evolves. Emerging media sectors like mobile, video and social are garnering significant revenues from ad…