Privacy in group situations

Clay Shirky, who is currently guest blogging on BoingBoing, has a link to a fantastic article by James Grimmelmann on “Facebook and the Social Dynamics of Privacy” which I’ve perused. I’ve been thinking about the nature of groups and how one keeps information and memberships from being inappropriately shared in uses such as scheduling events and it scares me as to how we are driven by what Facebook, MySpace, Google et alia want from us and how they define these relationships for their advertising/mining benefit.