Privacy concerns where the reason why I never joined Facebook in the first place. But still they do know me. As some people typed my email address into it, to

Privacy concerns where the reason why I never joined Facebook in the first place. But still they do know me. As some people typed my email address into it, to request my friendship... I am part of one social network that is more about professional relationships. As I got many contracts through this network, I am a happy paying customer and the benefits outweight the privacy problems. Joining a social network that is mostly about private stuff is a no go for me. I just do not see a benefit in putting that kind of information into other peoples hands. I do not want my future customers to know that I am friend with 'Beer-Bong-Bob'. But as I just turned 30, I will listen to PG-13 and keep my mouth shut now. :)