National Ads
..I. Quarter - 9.53 %
.II. Quarter - 13.90 %
III. Quarter - 18.42 %
Retail Ads
..I. Quarter - 8.64 %
.II. Quarter - 9.56 %
III. Quarter - 11.72 %
Classified Ads
..I. Quarter - 24,91 %
.II. Quarter - 27.17 %
III. Quarter - 30.85 %
Total Print
..I. Quarter - 14.38 %
.II. Quarter - 16.07 %
III. Quarter - 19.26 %
Total Online
..I. Quarter + 7.20 %
.II. Quarter - 2.40 %
III. Quarter - 3.00 %
Total Print & Online
..I. Quarter - 12.85 %
.II. Quarter - 15.11 %
III. Quarter - 18.11 %
via / more NAA
P.S.
Martin Langeveld on the News after Newspaper Blog
Media Share of U.S. Advertising Shares 1949 - 2009

Thanks, Martin!
via / a larger version of the picture at News after Newspapers