That is, from online sources like blogs, RateMyProfessors.com, and Facebook? Here’s an article of interest in the NY Times: “The Professor as Open Book” by Stephanie Rosenbloom. Here’s the beginning bit:

It is not necessary for a student studying multivariable calculus, medieval literature or Roman archaeology to know that the professor behind 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.

When scholars were recently given the chance to refute student criticism posted on the Web site RateMyProfessors.com, a cult-hit television series, “Professors Strike Back,” was born. The show, which has professors responding on camera to undergraduate gripes such as “boring beyond belief,” made its debut in October on mtvU, a 24-hour network broadcast to more than 7.5 million students on American college campuses.

“It’s our dominant show driving half of the traffic to mtvU now,” said Stephen Friedman, general manager of the network. “It gets more than our music premieres.”

Though it includes a few dissenting views, the article is overwhelmingly positive about professors sharing their lives online as a humanizing networking approach. Being one who blogs and is on Facebook, I think I’d say it’s a positive phenomenon. As long as no naked photos or the like are revealed, I think online chumminess goes a long way towards making connections in the classroom (connections that could lead to further learning!).