(L-R) Danielle Greenberg, director of nutrition and scientific affairs at PepsiCo, Eric Mittenthal, media relations director IFIC, Elizabeth Shepard, executive director of Delish.com, and Daniel Pellegrom, Pepsico sustainability communication speak at the Social Media and Nutrition Advocacy: Guidelines Spur Online Conversations at the Heart Tower February 7, 2011 in New York. (Allison Joyce/Insider Images)
02/07/2011 Social Media Week NYC