MTV Networks will track second-by-second viewing of Web commercials and videos, and link viewer online communities built around its TV programs, the network's digital chief said in an interview focused on the company's new advertising strategy. Viacom Inc's 26-year old cable TV network is striving to remain relevant in a digital age by learning more about fans... through the shows' websites, said Mika Salmi, MTV president of global digital media in an interview with Reuters... "We want the advertisers to know exactly what's happening on our websites and how big we really are in online video, said Salmi. "Internally, we...