Picture Perfect

The facts: More than 11 million Pinterest users have driven more online revenue per click than 900 million Facebook users and 140 million Twitter users combined. What's more impressive is that this visual sharing pinboard social network achieved these numbers in roughly a year.

The demographic: Unlike Facebook's relatively modest five-year journey from the college dorm room to your grandma's desktop, Pinterest gained immediate traction in the Midwest with 35-year-old to 50-year-old female craft enthusiasts. It then quickly made its way east and west to a younger 20-something crowd. The 35-year-old to 50-year-old female audience has remained strong while the younger demographic keeps growing.