I checked Twitter the other day! It looks very easy and useful to tell the situation. But it is little bit troublesome because unless having machinery, we can't update our information. Maybe we don't have time to update many times. I think that it is useful for TV entertainer or so. It is very nice for fans to know what they are doing because usually we can't know the daily life of them! I have account of Facebook. I use it very much because I can keep in touch with friends who live far away. And it contains not only uploading statement but also photos etc. So I think it is useful than Twitter.
I'm going to visit Odaiba with my friend from Australia soon! can't wait!