Accepting more Facebook friend requests, not making them, is linked to longer life: study

Bumper earnings: Mobile ads accounted for 78% of Facebook's ad revenues in the quarter, compared with 66% a year earlier.

Think online social networks have no bearing on your real life? Think again. 

Scientists who studied Facebook activity and mortality rates of registered California voters found that people who received many friend requests were far less likely to die over a two-year period than those who did not. Initiating friend requests, however, seemed to have no effect on death rates whatsoever.