As American teens navigate the new world of digital citizenship, a new study has found that 69 percent say their peers are mostly being kind to one another on social networking sites. Still, 12 percent say they witness meanness frequently, 29 percent sometimes and 47 percent only once in a while; 15 percent report that they have personally been the targets of mean or cruel behavior online.

The findings are based on focus groups and a national survey of youths ages 12 to 17 and their parents, conducted by the Pew Research Center Inter- net & American Life Project.

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