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Last week the Times suggested that Oprah's show was losing relevance. Today it's AdAge with a piece that exposes the seamy business of product promotion on the media queen's daytime talk show: "It helps a whole lot if Oprah likes your brand or its ads. It helps more still if Oprah's producers like you. And it possibly helps even more if Oprah likes you or the person endorsing your brand. Oh, and another, murkier point: Some PR people believe it may help to 'do a sponsorship,' as one put it." [Ad Age]