What can you tell about people and their situations from only 140 characters? Quite a lot according to a new study about Twitter. To date, no research has tapped the vast data from social media to study situations. Using more than 20 million tweets, researchers provide insights about the psychological experience of a typical workday or week, and reveal the psychological characteristics of real-world situations that people actually experienced over the course of two weeks.

Source: 20 million tweets used to understand people and real-world situations