US Local Digital Ad Spending, 2003-2013 [CHART]
This year, Borrell Associates expects growth in local radio digital ad spend to slow slightly, but still remain in the double digits, as total spending on local digital radio reaches $422.6 million. At that point, radio’s share will again decrease slightly to 1.7%, primarily due to an uptick in growth for local digital ad spending overall. Read the rest at eMarketer.