It seems that Facebook are trying to extend their information base by capturing information on people that are not using Facebook and their relationship with Fa

It seems that Facebook are trying to extend their information base by capturing information on people that are not using Facebook and their relationship with Facebook users. I already get emails from facebook saying so-and-so wants you to sign up, plus the following other people, revealing part of my social network that facebook already knows about even though I don't have an account. Emailing with facebook mail users will just make things worse...