"But does it really matter if the kids don’t get it? The fact remains that Twitter has grown to be a major online presence and is being driven forward by significant buzz. To illustrate this point: the volume of Twitter mentions on blogs, message boards and forums has reached the same level as Facebook, a property four times its size.
We’ve also seen that Twitter’s growth is very highly influenced by buzz around current events such as the Iran election. All it takes is one celebrity or major news story to rekindle the Twitter buzz machine, but do these one-off shifts create one-tme curiosity seekers or lead to more permanent users? That’s the unanswered question." (via Nielsen Wire blog)