Lucy Kellaway has been looking at what business executives do with Twitter. She is predictably funny about it:

Despite the dismal use to which executives are putting Twitter, more and more are signing up for fear of being left behind. Last week I met a British business leader who told me that he had just joined, but complained that he was now so focused on turning the details of his day into pithy tweets that he was finding it hard to pay attention to what he was doing. Worse, once he had composed his Tweet he felt insecure and unpopular as only three people seemed to be following him….