His upbringing on Twitter
                        was a humble one. The hugely popular actor started with just a handful of
                        followers when he signed up a few months ago. But soon, he and his famous
                        actress wife, Demi Moore, were adding thousands of followers a day. They would
                        talk about nothing, like everyone else on Twitter, and sometimes they would
                        talk about each other. It’s a true web success story.Seriously though, I, like
                        the rest of you, am glad this is over. A million users is significant only in
                        that it means Twitter is hugely popular — which we already knew. And that it’s
                        getting taken over by celebrities — which a lot of us saw coming. Much more
                        interesting will be when some non-celebrity feed passes a million followers.
                        But it may be a long time before that happens. The name of the game on Twitter
                        is self promotion, and celebrities have a huge advantage in that department
                        over regular folks.