FB is clever though. I have a long lost friend and periodically I have looked for him and looked through the friend lists of friends we used to share. Today he popped up as a friend suggestion! I figured he must, after all, be on the list of a friend of mine, But no, he has just 3 friends, who I don't know. So how did FB know? I guess he just joined and maybe he has requested to be friends with some of my friends? Or FB remembers I haver loooked for him.. but his name is VERY common and FB has never suggested anyone else with his name! Spooky.