From Forbes:

Spending on advertising in the U.S. fell 15.4% in the first half of 2009, compared with the same period a year earlier, according to an annual report released Tuesday by The Nielsen Company. For the six-month period, ad spending plummeted more than $10.3 billion to $56.9 billion.

...

National newspapers saw ad spending decline 22.8%. Local newspapers dropped 13.2%. National magazines, outdoor media and network radio similarly fell 21.2%, 14.9% and 9%, respectively. Even the Web took a hit. Ad spending declined 1% through the first six months of the year.