Sree Sreenivasan is a tech evangelist and skeptic (he can explain how he´s both) specializing in explaining technology to non-techies.

He is a professor and dean of students affairs at Columbia University´s Graduate School of Journalism, where he teaches in the digital media program (he has also been teaching entrepreneurship at the J-school and digital-media marketing for an MBA Master Class at Columbia Business School). He has been on the faculty for 17 years.

He is a contributing editor at DNAinfo.com, a Manhattan-news startup he helped launch in 2009 with Joe Ricketts, the founder of Ameritrade and whose family just bought the Chicago Cubs and Wrigley Field.

He also has been a fixture on NYC-area television. For more than eight years, he served as technology reporter for WABC-TV and WNBC-TV and now occasionally appears on various TV shows (on CNN, NBC´s Today Show, CNBC and elsewhere) to talk tech. He has written articles for The New York Times, BusinessWeek, Rolling Stone, National Journal, Bloomberg, Forbes and Popular Science.

He is co-founder and former president of the South Asian Journalists Association, a group of 1,000+ journalists across the U.S. and Canada.

In March 2004, Newsweek magazine named him one of the nation´s 20 most influential South Asians; and in 2009, he was named one of AdAge´s 25 media people to follow on Twitter and was one of 22 professors named to the "Top 100 Twitterers in Academia" by OnlineSchools.org.

You can find him on Twitter at http://twitter.com/sreenet and on the Web at http://sree.net/