Quartz: "Are people who don't use Facebook more productive?" (Gloria Mark cited)

“In general, there’s no hard data showing that people who are on Facebook are more or less productive. There is an argument to be made, however, that some Facebook use at work is associated with higher performance: in one study Gloria Mark of UC Irvine showed that Facebook use at work is associated with a more positive mood at the end of the workday.

Read the full story at Quartz.