This looks cool. You may want to include the 'about' link in the header (not just footer) since you have essentially infinite scroll, and as a first-time visitor I want some more context.
Jason, I've been a big fan of your work ever since Mahalo days. Love what you and Lon are doing with Inside.com. Ping me if you ever want to discuss tech strategy, I think your format is uniquely well-suited to a machine learning approach with a couple modifications.