Ask HN: What do you do *after* you've checked your news sources?

My procrastination fall-through usually goes like: Hacker News -> Google News -> Buzz -> Facebook -> Onion. And then, by Onion time, I usually get a moment of clarity and shut my laptop lid. I'm not too concerned that I procrastinate in this fashion...rather, I'd like to fix the sharp diminishing returns of my current fall-through. What do you do once you've finished checking HN? What's some positive, low brain-intensity, online activities that you could recommend?