David Autor, an M.I.T. economist who has done path-breaking research on the labor market, has been the focus of blogosphere discussion lately. Paul Krugman discussed his work in a blog post and column. Michael Luo featured Mr. Autor’s work in a Times article last summer. Autor’s August 2013 New York Times Opinionator column received more than 700 comments on the NYT homepage and subsequently became the centerpiece of several Public Radio news programs.