Facebook is rolling out a feature that will allow friends to track each other in real time. There have been a lot of changes to the world's largest social network in recent years. Take a look at some of the most annoying.
News Ticker -- As part of sweeping changes rolled out in September 2011, a real-time news ticker was added to the right side of the homepage, letting you know what your friends were posting and commenting on as it happened. Some thought it too busy, and you now have the option to hide the ticker.