The evolution of the house cat. (Scientific American)

Twitter is less a peer-to-peer social networking tool and more a uni-directional, one-to-many publishing tool. (Harvard Business)

Ray Kurzweil reminding us of the continuing exponential growth in information technologies, and announcing the launch of Singularity University. (TED)

Thinking of lessons learned: Confessions of a Car Czar. (Free Exchange)