Pinterest’s popularity in the United States has surged in the last year, particularly among women, according to a new study.
The social bookmarking service is now used by more than one-fifth (21%) of American adults, up from 15% a year earlier, according to a survey of U.S. social networking habits from Pew Research. That puts Pinterest slightly ahead of Twitter and Instagram, though all three are well behind Facebook.
Marvin E. Smith 