"newspaper ad revenue isn't a component of GDP growth,"
First of all, it IS a component of GDP. And second, the graph shows that somewhere around 1987 (which is when newspaper revenue peaked in real dollars), the fortunes of newspapers became unhinged from GDP. Before that, when GDP grew, newspaper revenue grew. After that, and especially after 1999, newspaper revenue generally fell, whether GDP grew or not.
On Google Believes Online Ads Could Be Worth More Than Print Ads by 2012
"newspaper ad revenue isn't a component of GDP growth,"
First of all, it IS a component of GDP. And second, the graph shows that somewhere around 1987 (which is when newspaper revenue peaked in real dollars), the fortunes of newspapers became unhinged from GDP. Before that, when GDP grew, newspaper revenue grew. After that, and especially after 1999, newspaper revenue generally fell, whether GDP grew or not.