Sarah Palin's book tour was the third-biggest news story from November 16-22 -- and second-biggest on television and radio talk shows:

Given her status as a polarizing public figure, it's no surprise that Palin's book tour last week-which included her doing interviews with everyone from Rush Limbaugh to Oprah Winfrey-was a hot topic in the talk show world. Indeed more than one-fifth (21%) of the airtime studied on the 12 cable and radio talk shows in the NCI was devoted to the 2008 GOP vice-presidential candidate, making it the No. 2 story there after health care. By a narrow margin, coverage of her book tour last week (8%) exceeded the attention devoted to her decision to resign as Alaska governor (7% from July 6-12, 2009).

That's an extraordinary amount of attention for an unpopular politician who holds no office.