I spent a few hours throwing together a new tags plugin that makes use of the new commandline features of code in PyBlosxom trunk (which will be PyBlosxom 1.5). Then I spent a while adding tags to all my entries.
I'm still mulling over my choice of tags, but I imagine I'll hone it into a set I'm happy with over time.
Also, I used
:: as a tag separator, but I think I'd recommend
something that doesn't require a shift key to enter. Perhaps ;; or //.
Tag information is stored in two dicts that are pickled and thrown in a file. It seems to be pretty fast to load for my blog (~500 entries). I picked pickle because it was easy, but if it turns out to be a problem, I'd be game for other storage formats.
I've been waiting for tags support before I did more blogging. Now that I've got tags support, I plan to move my work blog here. That'll make things easier and get me off WordPress.