Respectfully, the letter spacing of your main font is so wide and the word spacing so comparatively narrow it's making for slow and difficult reading for me. I can see how you may be going for a kind of spacious theme for the look of the site, but there is probably a way to do it without impeding the visual flow of the text...

None the less, I'm quite eager to get through this very interesting article, I'd just rather do it without using Readability.

(MBP/10.5.8/Safari)