Hierarchic Blog Categories »
Earlier this week, Dave Winer was talking about his new categories being hierarchic and not flat. That's cool. I can only assume that the comparison is to the standard Movable Type installation, as it uses a flat category system. Perhaps other systems do this as well.
I've actually been using David Raynes' very cool SubCategories plugin for MT for a while now. For instance, if you visit my Movable Type category, you'll see entries not only from that category, but also from my plugins, which I've configured as having the Movable Type category as a parent.
I haven't compared feature-to-feature or anything, but using my setup now, I can include items for a parent category and its children or a items for a single subcategory pretty easily, and that would lead me to believe that Dave's claim of being the first isn't exactly correct.
Of course, he didn't really claim what was a first, either. Since the preceding sentence mentioned that this was his first use of categories at all, then by implementing them, that is a first. Perhaps it is also the first use of hierarchic categories in Radio/Manila as well. But I don't think it's a first for weblogging in general.
