As far as I am concerned, if the government could understand me though little bits of factual information that I provide that may or may not be true, then I must not be that interesting of a person. As for things like schedules and whatnot, that is just common sense for any responsible person; stalkers use the information to possibly follow you, heck I would be flattered. As for Facebook giving out information to other parties, I think that is fine as they are not so much as doing it on an individual basis. They are more interested in group trends. If by giving out the information they are able to make money to support the site itself to which they provide users a valuable service than so be it.
To understand the use of Facebook it really helps to be a college student. The service helps you share memories, stay in touch with old friends, and plan things with new ones all while letting people know things with you having to tell each of them individually. It really comes down to that. All of the applications for it are annoying though; I would prefer it if there were none of this crap.
