These plugins are plugins written or at least extended by Axel Beckert
<xtaran@users.sf.net>. They're usually also available at
http://noone.org/blosxom/

Axel's blog (of course powered by blosxom) can be found at
http://noone.org/blog and his blog posts about and around blosxom can be
found at http://noone.org/blog/English/Computer/Web/Blosxom