"It is not necessary for a student studying multivariable calculus, medieval literature or Roman archaeology to know that the professor on the podium shoots pool, has donned a bunny costume or can’t get enough of Chaka Khan.
Yet professors of all ranks and disciplines are revealing such information on public, national platforms: blogs, Web pages, social networking sites, even campus television....
While many professors have rushed to meet the age of social networking, there are some who think it is symptomatic of an unfortunate trend, that a professor’s job today is not just to impart knowledge, but to be an entertainer."
Now ponder this last part. The professor's "job" seemed to be in part to create an aura of personal impenetrability and solitariness and remoteness only when, as it happens, the technologies of personal knowing were what they were. Now that they are what they are, the "job" seems to be changing. These things are not innate. And as for entertainment, it's the Times that's asserting this by putting the "story" on its Style page. There's nothing more or less entertaining about a teacher who is known as distinct from unknown. It all depends on the teaching.