Advertising and a Democratic Press by C. Edwin Baker
In this provocative book, C. Edwin Baker argues that print advertising seriously distorts the flow of news by creating a powerfully corrupting incentive: the more newspapers depend financially on advertising, the more they favor the interests of advertisers over those of readers. Advertising induces newspapers to compete for a maximum audience with blandly "objective" information, resulting in reduced differentiation among papers and the eventual collapse of competition among dailies.