Editor's Note: Margelina Redux

The ROI on the time I spend on personal social networks is off the charts. I found out about a neighborhood reunion that I wouldn’t have known about otherwise, discovered delightful sides to people I typically only see at conferences and saw a recent picture of my old grade-school crush. Online communication is what we make it — a home for snarky bon mots and quiz results, or a way to connect with people who make a difference in our lives even though we might never see them in person. I opt for the latter.