"Facebook may also collect information about you from other sources, such as newspapers, blogs, instant messaging services, and other users of the Facebook service through the operation of the service (e.g., photo tags) in order to provide you with more useful information and a more personalized experience.
By using Facebook, you are consenting to have your personal data transferred to and processed in the United States."

Taken from This Page

And Facebook's Terms of Use page gives more information about what they care about.

All the critics of FB on the programme stressed the importance of closing all your privacy settings down so as your personal info only is visible to your 'Facebook Friends'.

... it was the first thing I did when I joined, and there is no one on my friend list who I don't trust with whatever incriminating evidence I may have on my profile. I'm self-employed, and don't much care about impressing employers.

The horror stories we all hear about identity theft, and that, is down to users' own lack of internet savvyness in most cases; leaving full dates of birth, and the like visible to 'All My Friends and All my Networks' (Privacy settings tab)

We can expect mudcat-like ads on our applications pages; the ones that match the subject matter, and the like.
Is that 'intrusion', 'cos it must involve some keylogging...?
Maybe.., maybe not.

Facebook categorically stated, however that they will never pass 'personal information' on to 3rd Parties, and they wanted to stress that to the public, as they 'need to let (their) users know that they can trust us (Facebook Inc., that is).

The programme didn't really tell me anything I would have been shocked, or surprised to hear, however.

Caveat emptor.

B.