Lookups spiked on March 21, 2012.
According to a new study, people with many Facebook friends - those who seek a large audience for their personal news and photos - are more likely to show traits of "narcissism."
Narcissism means "excessive admiration for yourself or your appearance."
It comes from Narcissus, the mythological character who fell in love with his reflection in a pool of water, and - unable to stop gazing at his own beauty - starved to death.
(We're reporting on the word use here, not endorsing the study.)