It's tough to answer your question without coming off like a total douche, but I'll try: I think you see most celebrities carefully choosing who they talk to and what they talk about because a lot of their value is based on the mystique their publicists can create for them. In other words, some actors play a role when they're on the set, and another when they're talking to Oprah. I prefer to keep my acting limited to the set, and because I have a blog, I can speak for myself, so I don't really need or want to participate in the Mainstream Entertainment Media.Link
In real life (like, not on The Internets) I'm a very shy and private person. When I'm out with my wife, I really just want to be left alone, and I feel pretty uncomfortable when I get into big crowds and stuff. But I think I'd feel that way whether I was an actor, or not. I don't think of myself as a celebrity, either. When I hear someone called a celebrity, I think of someone who gets special treatment, never waits in line, and has had sex with Paris Hilton. And I wish my blog wasn't constantly framed as a "celebrity blog."
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.