2011 : 75 percent of teens rated social networks ' privacy ratings as ` ` negative '' More than 90 percent of parents polled are concerned that teens know too much . To conduct the online poll of parents , Zogby International used a sampling of 2,100 adults from its online panel , which the polling firm says is representative of the adult population of the United States . Common Sense Media is the project 's sponsor .
2011 : 75 percent of teens rated social networks ' privacy ratings as ` ` negative '' More than 90 percent of parents polled are concerned that teens know too much . Common Sense Media is the project 's sponsor .