"The New York Times points out a key factor to watch: "The third quarter of the year, July through September, is traditionally the most difficult fund-raising period because contributors pay less attention to the race in the summer, and many main donors have been tapped out." "Both Clinton and Obama are set to report about $20 million in donations during the third quarter, which ends Sept. 30, 2007." "Presidential candidates, the political parties and interest groups will spend at least twice as much as they did in 2003-04 on TV ads before nominees are chosen, campaign advertising experts say," USA Today reports. "The allure of posting ads for free on YouTube and at campaign websites won't replace broadcast TV because that "old media" is better suited for reaching voters, the experts say."