This is Nielsen data for March, 2008. The table below the chart shows the percentage distribution:
I got the data above from Marketing Charts. If these numbers are accurate it suggests that TV in the aggregate controls more than 60% of the national ad spend, while the Internet sees just over 7%. This is a clear case of the advertisers and agencies lagging consumers who are not abandoning TV but paying less and less attention to it.
Compare data from the IAB on the distribution of the ad spend. You’d have to do the math and reconcile the categories to make an apples to apples comparison but the following disagrees with the Nielsen data (at least in terms of newspaper share):
