everything you mentioned seems to me to be ad targeting data, email, email address, thumbs up, save as fav even viewing a global google docs all this is part of

everything you mentioned seems to me to be ad targeting data, email, email address, thumbs up, save as fav even viewing a global google docs all this is part of data collected as part of the profiling process in order to do ad targeting. Actually I don't think there is a single you do once logged on (or registered) that is not collected to profile you. facebook even collects what you do when logged off.