But do they? Do they really? I once setup a facebook account for a company (I have never had a personal account). They send that account an e-mail every day (an

But do they? Do they really? I once setup a facebook account for a company (I have never had a personal account). They send that account an e-mail every day (and an SMS). Every day. If I had the e-mail account set to actually load images in the text of the e-mail, would they count those logged hits as an "active user". I suspect (albeit with no actual concrete evidence) that their "user" numbers are significantly over stated via mechanisms such as this.