Yesterday afternoon I got a chance to meet Facebook COO Sheryl Sandberg, the author of Lean In, the much-discussed book about the need for women to take it upon themselves to strive for leadership roles. It was the day Sandberg was officially launching her book, which had already gotten a huge amount of publicity, including a segment on “60 Minutes” and a Time magazine cover package with eight stories devoted to Sandberg’s ideas. Yesterday she had a packed schedule, including an appearance on "Good Morning America,” an evening panel discussion moderated by Time’s Nancy Gibbs and a piece on “Nightline.” Today she’s making an appearance at a Manhattan Barnes & Noble to talk about the book with Chelsea Clinton. All of this has already propelled the book to the No. 1 sales spot on Amazon.