Have you heard the news? E-mail might not be dead yet, but it is going away. That's what Sheryl Sandberg, COO of Facebook, announced on June 24, 2010, in a keynote at the Nielsen Consumer 360 conference. This assertion was based on a data point from the Pew Internet and American Life Project's April 2010 "Teens and Mobile Phones" report. Sandberg noted that only 11 percent of teenagers use e-mail daily - while an overwhelming majority don't stop text-ing and "Facebooking" all day long.