Considering that it's still the season for summer internship and job recruitment/interviews, you may want to be especially careful about who you friend on Facebook.
A few weeks ago, I received a friend request from someone named Jasika Roberts claiming to be Princeton '10 and from the Princeton, NJ area. She and I had over 30 mutual friends. I accepted the request to see if her information would yield clues to how I or any of my friends knew her. I didn't find much, so I searched Princeton Facebook and the directory to discover that she didn't actually exist. The closest match I found was a Hilary J. Roberts who the directory has listed as "Undergraduate Class Withheld". (Some quick research led me to a Club Swimming page where she was listed playing for Harvard (not related to Jasika, but the University may want to follow up on that ... ))
This morning, I got another friend request from Chloe Barnwell (also claiming to be Princeton '10). She was friends with most of my friends from Charter, so I searched the faceboard and found nothing. Later, I did a general internet search, Princeton directory and Princeton Facebook search and found nothing as well.
I think this might be the an employer tactic to get access to your profile, spam, or just some market research group creating a fake identity (they know you won't deny a friend request from a pretty girl). She looks real enough, right? Interestingly enough, most of my friends who accepted Jasika's friend request were male, while Chloe, who didn't have a Facebook photo had an even number of my male and female friends accepting her request.
Though I doubt it, if you're not concerned about jobs or internships, this could also be a ploy by Public Safety or the Princeton Police Department to catch you drinking or serving minors in your pictures. Check out what they did only a few months ago (and are still doing?) over at the University of Wisconsin-La Crosse.
— Tasnim Shamma '11