"Most people are a thousand times more interesting when they’re talking than when they’re writing. Why is this? Because people panic when they start writing. People instantly revert to memories of 10th grade English class, and memories of No. 2 pencils, and lined notebooks. And then they freak out and tense up. Don’t tense up. Just relax. Seriously."
Other tips here.
2006-2011 archives for The Daily Dish, featuring Andrew Sullivan