The popularity of the digital self-portrait is skyrocketing By Kelly Hockenberry, Columnist, The Times  #selfie sunday This is a hugely popular hashtag (LIKE 4 MILLION POSTS)!  Did you know? (Unsure of the lingo? find a teenager to explain) What does the explosion in popularity of the selfie really mean to society?  Is it the root of all evil (as some choose to believe) or a new way to attempt...