Well! There goes Facebook. Bloomberg says:
Facebook Inc. (FB), seeking to break the long-held dominance of television over advertising budgets, plans to sell TV-style commercials on its site for as much as $2.5 million a day, two people familiar with the matter said.
The world’s largest social-networking site, which has 1.15 billion members, expects to start offering 15-second spots to advertisers later this year, according to the people, who asked not to be named because the plans aren’t public.
But don't worry! It'll be totally tasteful. According to the article, "Facebook members won’t see a spot more than three times in a given day."