In my neverending search for the perfect markup for Technorati to parse, I adjusted this blog to comply with Microformat's hAtom. I've no idea if it works...
Update: Didn't work.
Update: Finally Technorati admit's that there are problems with their parser: 
How to get your blog indexed by Technorati. I'm still testing and we'll see if it works better now.
More awesome stuff: