For me the problem is the (open) publication of my name in relation to data about me that I gave out in a different context than that in which it’s been published. I voluntarily gave out information in Orkut, but yes, although that is on the web (OK, I wasn’t specific enough there) it’s password protected and access is limited to others who have also voluntarily shared information about themselves. There’s a mutuality there, and I do experience a site like Orkut as a more closed form of publication than putting something freely on the web. I think this happens in email lists and places like MOOs, too, although anyone can join most of these communities, what is written there is meant FOR that community not for the general public.