(Note to mods, by the nature of this post, some docs are going to get dropped, feel free to delete this if you deem it necessary.) Yes it is possible. If you look at the filename of the picture, the third set of numbers is the person who uploaded the picture's user id. In this case, 35426_802059759332_68111578_43275108_3681124_n.jpg, 68111578. You can go to the person's facebook profile by going to http://www.facebook.com/profile.php?id=UIDNUMBER Also, the fourth set of numbers is the picture id, which if the picture isn't private, will allow you to to go to that picture's page. In this case, 35426_802059759332_68111578_43275108_3681124_n.jpg, 43275108. (Won't work in this case though...) Picture URLs are of the format http://www.facebook.com/photo.php?pid=PICTUREID&id=UIDNUMBER Use this information for good, happy stalking, and as always neither the DDP, BinRev, nor I am responsible for what creepy hi-jinx you get up to with this.