Or maybe you turn to facebook to plan a wedding or a big night out. if so, you were among billions around the world for whom these vital services just stopped working yesterday. what was striking about this catastrophic breakdown of facebook services was just how long it went on. usually these kind of things are sorted out within an hour or so, but this went on for six hours before services were finally restored. so, what was going on? facebook�*s boss mark zuckerberg did not have an explanation, but made this apology. "sorry for the disruption today. i know how much you rely on our services...