U.S. Local Digital Ad Revenues to Nearly Double by 2015. Local advertisers continue their steady migration to digital media platforms, according to BIA/Kelsey's U.S. Local Media Annual Forecast (2010-2015). BIA/Kelsey, adviser to companies in the local media industry, expects online/interactive advertising revenues to climb to $42.5 billion by 2015, almost double 2010's $21.7 billion, representing a compound annual growth rate (CAGR) of 14.4 percent. This growth coincides with anticipated improvement in the U.S. economy and a continued rise in overall local advertising, which the firm expects will reach $153.5 billion in 2015, up from $136.3 billion in 2010, representing a 2.1 percent CAGR.