So, I've set up hooks that allow you to slurp an RSS (1.0) file for an aaronland category widget. The URL scheme is as follows : http://aaronland.info/weblog/category/(NAME|ID)/rss. You can see an example of where all this nonsense might get interesting at the perlblog. You is all still in the proof of concept stage, so you should expect breakage and random weirdness for a while yet.