“Twittering” is where it’s at. Frankly, I don’t understand it. How many people can we communicate with? Never the less, I am twittering and so is Lance Armstrong, Martha Stewart, and Kevin Spacey. When Kevin Spacey visited me the other day to promote his new Broadway play “The Norman Conquests”, he was twittering away responding with people from Denmark, Scotland, and who knew where else. Lance Armstrong twittered to say he was on his way to see my son’s movie “I Love You, Man”. What is twitter you ask? Twitter is a free service that lets you keep in touch with people through the exchange of quick messages to one simple question: What are you doing ... You can use it on your phone or computer, and you can only enter 140 characters at a time. This means that you must post very short, direct-to-the-point messages. I am not sure if it is possible for me to be short and to the point.