We're not usually one for nostalgia , but Facebook evidently is With 10 candles in its birthday cake today, the social networking giant hopes to make all of its users a little misty-eyed, too, with its "look back" highlight video reel. To see yours, head to the link below and cringe at your first post, most liked update and a whole host of other things you'd probably long forgotten. If nothing else, it's possibly a good reminder to revisit those privacy settings