Twitter Behavior Can Predict Users' Income Level, New Penn Research Shows

"The words people use on social media can reveal hidden meaning to those who know where to look. Linguists have long been fascinated by this notion, connecting a person's words to age, gender, even socioeconomic status. Now computer scientists from the University of Pennsylvania and elsewhere have gone a step further, linking the online behavior of more than 5,000 Twitter users to their income bracket."