So nobody should notice, but I switched from the Perl version of blosxom to the python version. One bonus this gives is the ability to define little filter modules to the text. I had hand-hacked in the blank-lines-separate-paragraphs bit to the Perl version, but I've been able to do still more by simply hacking pyblosxom to use a default filter.
It can cache the files if things get too slow, but I don't imagine that will happen.
The most notable changes are that URLs such as http://www.lnx-bbc.org/ and http://www.lnx-bbc.org/logo.png will be translated (the second one was "http://www.lnx-bbc.org/logo.png", and the URL has to be separated by whitespace -- I may add angle brackets or something to the mix at some point).
Also, you can do emphatic text with the application of asterisks. (that was just "emphatic text" -- again, spaces make the magic happen).