So are you going to be using screen shots of real people's profiles, or are you just going to create entirely new ones? Also, if you want the pages to feel realistic, make sure you consider that in facebook, basically all of your information is an active link. You don't use facebook so I'm not sure whether you know this, but whenever someone updates their profile it says what they updated on theirmini feed. As in "Becca updated her About Me section." Are you going to be using this when you make the subtle and not so subtle changes? Or are they even more subtle than that?