Stephanie – The example you use (tracking personal data for marketing) was precisely what I was thinking under “Privacy” issues. While that kind of tracking creates convenience for us in terms of companies serving us custom content and messages based on our interests, there is a gray line there in terms of their ability to manipulate our behavior via access to personal behavior trends that were never before possible. What if someone tracked our every move physically and followed us around constantly? That’s stalking…and it’s a crime. Virtually? That’s not defined, though we all joke about cyber-stalking. Serious issue.