by Larry Magid. A study commissioned by Truste paints a pretty optimistic picture about how teenagers are using privacy tools on Facebook and other social networking sites. The study, entitled The Kids are Alright, (PDF) reports that "80 percent of parents and 78 percent of teens feel in control of their personal information on social networking sites" and that "84 percent of parents are confident their teen is responsible with personal information on a social networking site." But the news isn't all good. The survey also found that more than two-third (68 percent) of teens have at some time accepted friend invites from people they don't know. Eight percent said they accepted all friend requests 34 percent said some and 26 percent said they rarely accept requests from people they don't know personally.