I have a twitter, but I try to not talk about things like, "Oh, I had a grapefruit this morning and it was delicious," because, who cares? But, I think it can serve as a platform for talking about things that matter to me, like the organizations that I work with. As pretentious as that sounds, it is true. You can really make a difference, if you can create a following and actually represent who you are, as opposed to how people want to portray you. But, I don't know what the balance is.