NEW YORK (AdAge.com) -- Advertisers have largely abandoned the sponsorship of objective journalism and the country's most powerful newsrooms are increasingly unable to fund the basic gathering and reporting of real, original news. That bleak picture was the subject of a Gotham Media seminar earlier this week. The former president of CBS News, president of the Newspaper National Network and CEO of Air America Media explored what the panel characterized as the mainstream media business' biggest content crisis.