What happens if you have people in your social network who didn't want to be or have no knowledge of it. There is increasingly a loss of control. As the the use of these sites is becoming more popular I always wonder about the people who have there privacy violated without their knowledge on these sites. For example you can tag people in photos on facebook even if they are not a facebook member. Right away those people have 2 pieces of hugely important bits of identity lost (their picture and name) from them without ever having been asked. In this scenario, people are losing choice and control of their own identity and associated data because internety people want to aggregate and potentially publish their social network.

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