Roger Ebert, the beloved movie reviewer for the Chicago Sun-Times, has been battling cancer for nearly the last decade. In many ways it doesn't seem to have slowed him down; he's about the most prolific Tweeter out there after writer Susan Orlean. Yesterday he posted one of the best food essays I've ever read, a blog post about living "Nil by Mouth" and losing his ability to eat and drink. It's more life-affirming than you'd think. Check it out here.