The more I look at your site, the more I love it. I really like how the archive section works and the category container on the front page is superlative.

I do also really like the new, minimalist masthead. From a branding perspective, I think that you have an opportunity to make more use your logo device. Part of me wants to leave it as it is, part wants to use it as a fixed, light background centered on the page and yet another part wants to use it in a manner similar to Gruber's stars (I'd use the stars on the left of the text on his site...).