adapting to graphic design

I'm a big fan of Jonah Lehrer's writing. I am not so sure I'm a fan of the layout of his home page. I don't know why. It has descriptive categories, it's pretty clearly labeled, and (something that should be obvious, but isn't always) the links work. My gut feeling is that organization should be vertical. Maybe too many outlines in my background.
http://www.jonahlehrer.com/