Sree Sreenivasan, dean of students affairs, Columbia Journalism School; contributing editor, DNAinfo.com

Sree Sreenivasan is the dean of students affairs at Columbia Journalism School and contributing editor of DNAinfo.com. Sree teaches in the digital media program (this fall, he is also teaching an MBA Master Class at Columbia Business School). For more than eight years, he served as technology reporter for WABC-TV and WNBC-TV in NYC. He is co-founder and former president of the South Asian Journalists Association. In March 2004, Newsweek magazine named him one of the nation's 20 most influential South Asians. In 2009, he was named one of AdAge's 25 media people to follow on Twitter.