When I switched from the old Tumblr to Github Pages, I got a surprising amount of email about my RSS feed. If I didn't screw things up, it should be here.
Also, for those of you who are curious, this site was created using Jekyll, an amazingly easy way to set up static sites. Shan Carter showed it to me in the fall, and we used it for our data visualization syllabus at Berkeley and Amanda and I are using it now for our class at NYU. It's great!
The RSS feed uses this implementation more or less verbatim.