Est. 2003
The blog of one Michael Heilemann, expatriated Dane coming to you out of New York City. Half machine, half grapefruit, Interface director at Squarespace, design lover, film enthusiast, Star Wars historian, creator of the Kubrick and K2 themes, and holder of opinions, many of which are shared on his Twitter account.
Absolutely amazing. Having been a level designer for over a decade, I can't stress how impressed I am with this. Granted, they can do this because the environments of Portal supports it, but that's part of the brilliance, isn't it?