This blog doesn't use a database any more. Instead, entries are saved in plain text files, and it's all put together using Mako templates.
Now I can have the blog contents under version control, I edit the entries the same way I edit the rest of the website (emacs and ssh), and the code has decreased in size quite a bit. It's also one less service running on the server.
This was my first application using a database, and I learnt a lot, but there is no point in keeping it any more.