StalkerCheck analyzes Facebook OpenStream data to work out who interacts with your profile most. It shows your top stalkers on Facebook as well as that of your friends. Just for fun; give it a try here. Don’t be surprised to see who your stalkers are. 😉
For privacy reasons, this Stalker Check app only lists facebook users who have interacted with your profile at least once during your friendship (e.g. by writing on your wall, or liking something). Real stalkers (the creepy kind) are protected by Facebook Privacy, and will never be revealed, by this or any other app.