In 1970, the majority of people in Chicago and its suburbs lived in pretty average places, by income at least. Now rich and poor dominate, especially in the city itself. Read more
How a vexillologist, an artist, and a municipal librarian worked within the rules and history of flag design to create a masterpiece of the genre. Read more
The Array of Things, the city's network of environmental sensors, makes its debut this month. It's not just an experiment in big data—it's also an attempt to forge a new kind of public communication from the ground up. Read more
