Malcolm Gladwell, one of my favourite writers, has started a blog:
I have come (belatedly) to the conclusion that a blog can be a very valuable supplement to my books and the writing I do for the New Yorker. What I think I’d like to do is to use this forum to elaborate and comment on and correct and amend things that I have already written. [...] I think I’d like to start posting reader comments for everything I write, and this is a perfect place for that. There are also times when I think I’ve made mistakes, or oversights, and I’d like to use this space to explain myself and set things right.