TechBook

As a sort of follow up to my discussion on social networking, I'd like to investigate what Facebook should be used for. In my personal opinion there are 3 distinct and obvious answers.

Option 1. Facebook's Original Intent
Everyone has heard about Facebook's origin. It was intended to be for Harvard students as a sort of social phonebook. This seems to me to say that it was designed with the idea of meeting new people in mind. And in the older designs, I feel this was apparent. There was a public wall where you could swap messages with other people and that was the main interaction. Privacy rantings aside - Facebook was founded to be (for the most part) public. If a user was to choose this option, it would surely mean that the only things that would be posted would be the types of things that would be said in public. However, more recent design changes have change the basic mode of communication away from wall postings (which are like talking in public) to status updates (which are like shouting in public). This changes the whole dynamic, so instead of only posting things you'd talk about in public, a user would probably only post things they'd be comfortable shouting about in public.

Option 2. Social Networking Your Personal Brand
This option is the market yourself option. You friend everyone you've ever met because you want to be able to contact them at a moments notice. You're the one your old class president turns to because even when its time for your 5 year reunion - you'll still be friends with everyone. This is one of the many ways you market yourself to the world and you want as many people to see it as possible. This is also a very public option, but it has a key difference - you are being active about putting yourself out there. You are "social networking". You'd post only those things you want the whole world from your best friend to your boss to the CIA to know about you.

Option 2b. Keeping In Touch
I list this not as a separate option because it shares the same user idea as the previous one. You friend everyone. But your motivation is to keep in touch with all of these old friends. You are probably not as active as putting yourself out there, but the same rules for what you post would apply.

Option 3. Privacy Is King
You are trying to maintain a social network for your close friends. You only friend those who you actually talk to with some frequency. You might feel comfortable posting pictures, events, and such so you can share your life with your friends. Despite the name, you are not necessarily freaked out about your privacy, but you don't want your boss seeing those pictures of you on the beach.

I don't claim that any of these is better than any other. However, in my quest to decide what to do with my personal facebook account, I wanted to solicit other's opinions. What option do you fall under? Is there another answer I've missed? Feel like I've misrepresented what you do? Post your choice, praise, or grievance in the comments!