"Obama Maintains Overall Swing State Advertising Lead"

McCain waited until right before the election to use his very limited advertising budget. Yet, even still Obama had more money to spend on advertising.

Nielsen just posted an updated analysis of Presidential advertising in the seven key swing states: Colorado, Florida, Georgia, Missouri, Ohio, Pennsylvania, and Virginia:

During the final weekend preceding the presidential election, Sen. Barack Obama ran 77% more TV ads than Sen. John McCain (5,947 vs. 3,358) in seven key swing states: Colorado, Florida, Georgia, Missouri, Ohio, Pennsylvania, and Virginia.
McCain, however, showed a much larger percentage increase in TV advertising from the previous weekend (Friday October 24 thru Sunday, October 26) to this past weekend (Friday, October 31 thru Sunday, November 2). McCain bumped his TV ad units up by 76% overall in the seven battleground states Nielsen tracked, while Obama increased his advertising in those states by just 3% over the previous weekend.
To date, both McCain and Obama have advertised most heavily in Florida. Obama ran 24,834 ads in the state between October 6 and November 2, outpacing McCain’s 8,599 ads by almost 189%.
Between October 6 and November 2, Obama placed 135% more ad units (80,504 vs. 34,179) than McCain in Colorado, Florida, Georgia, Missouri, Ohio, Pennsylvania, and Virginia.
(Note: this data includes national and local ads seen in these states, as well as syndicated advertising. Local cable ads are not included. Nielsen’s ad unit data shows preliminary commercial occurrences and may fluctuate from day to day, as data is updated.)