Pew used Princeton Survey Research Associates International to conduct the actual telephone interviews with a representative sample of 1,006 adults in the U.S.
The Pew study found that 61 percent of the Facebook users who responded have taken extended, weeks-long breaks from the site. Those who have taken Facebook sabbaticals did so for the obvious reasons: 21 percent were too busy, 10 percent lost interest, and 10 percent felt it was a waste of time.
