Unethical? Depends on your friends preferences really. Have you considered that maybe your friend is happy for people to know he is on facebook if they wanted

Unethical? Depends on your friends preferences really. Have you considered that maybe your friend is happy for people to know he is on facebook if they wanted to get back in touch? If he adjusts his privacy settings it should put an end to this advertising but really, what harm could come of it? If I type a persons name into google, I'm not going to be shocked to find that they are a member of the worlds largest online social network.