Quick link round-up

I'll be a lot less busy in March, they tell me. Meanwhile, here are some things I want to read:

• The Atlantic Cities blog has an analysis of class in Chicago by census tract.
• Seth Godin doesn't like airports, because they're organizationally horrible. Best bit: "There are plenty of potential bad surprises, but no good ones."
• Liz Keogh advocates Behavior-Driven Development as a new way of looking at Test-Driven Development.

I will get to them...soon...