Well, I finally bit the bullet and whipped up my own little weblog in PHP (just like, apparently, everyone else on the web). The next piece that I need to write is a quick-n-dirty updater for Advogato, Kuro5hin, and SourceForge, so that whenever I post something here, a link to it appears on the other sites. Shouldn't be too hard to whip up, but we'll see.
(If you're wondering what this thing actually does right now: not much. The subject and body are stored in timestamped files, which PHP indexes, reverse-sorts, and blats out to the browser formatted correctly. I expect to get links to particular articles working next.)