PUBLIC MARKS from adfunk with tags "social bookmark" & facebook

As intrepid Web users collect photos, videos and friends on social-networking sites, they could be opening themselves up to malicious software, according to a study published on Wednesday by the National Cyber Security Alliance and CA. More than 83% of adults who use sites like News Corp.’s MySpace, YouTube and Facebook admit downloading content from another user’s profile, and 74% say they give out personal information on these sites, according to the study.