rjnagle writes "I'm concerned about the implications of storing personal data on Gmail, Facebook, and other social media sites. I'm less worried about individual data than the accumulating mass of data which potentially be used against me (for targeted marketing, credit reporting and who knows what else?) One solution I'm considering is just to abandon individual accounts and start clean and new gmail/facebook accounts. So while Google/Doubleclick might possess lots of data about me from 2001-2012, from this point on, they only have a clean slate. Would this kind of solution address my privacy concerns? (assuming I remove cookies, change IP address before doing so etc). Or are an individual's profile by now so unique that simply creating a new gmail or Facebook account would fail to prevent these data collection agencies from figuring out who I am? Insights and tips are appreciated."