Even big advertisers, including Anheuser-Busch ( BUD), are getting into the act. Last week, the self-proclaimed King of Beers announced plans to create Bud.TV, a Web site with "consumer-generated content, field news reports, celebrity interviews, music downloads and comedian vignettes." "There's huge demand for online video," says Yahoo!'s chief sales officer, Wenda Harris Millard, in an interview. She adds that inventory for popular areas of the company's site can be scarce, but that it is not sold out.