My concern extends to the increasing mining of social graphs. For example, the concern that having "undesirable" friends may turn you in turn into an "outcast"

My concern extends to the increasing mining of social graphs. For example, the concern that having "undesirable" friends may turn you in turn into an "outcast": For loans, insurance, job applications, and who knows what else. (The No Fly List? I wouldn't put it past them...) This could have a rather corrosive effect on the very "networking" nature and commonality of the Internet. I don't particularly want to be shepherded into a class, or caste, based hierarchy of online connectivity. I mean, people will cluster and groups will form, on their own. But enabling third parties to so aggressively and thoroughly use that to classify and segregate? No, thanks. Maybe I'm just naive, and this will inevitably happen. Well, I have control over my own actions and participation in same.