fb applications question

Hi,

I want to find a fb application developer for a new idea i have.
But first i need to find out what data my application is allowed to collect?
I have been told there is 4 different areas of data that can be collected but does anyone know what data fields are available in each area?

Thanks

It's easier if you just state what you would like your app to do and go from there. Nearly everything is possible.

This url will tell you whatever data you can collect about a user via an app.

http://developers.facebook.com/docs/reference/api/user/