Activism

And now researchers have determined just how much of an impact the social network had.

According to a study from researchers at the University of Maryland, almost 70% of people who attended the D.C. march heard about it on Facebook (FB, Tech30). Meanwhile, 61% from friends and family.

Her story illustrates just how powerful armed groups still are. Even though a ceasefire has been declared between the army and the left-wing Farc rebels, parts of the country remain lawless.

A statuesque Afro-Colombian woman wearing a bright turban and loose flowing robes hovers over her patient and gently prods his stomach.