Whenever I'm experimenting with web based software, I will usually try to install it on a server. After some time, I will get tired of maintaining the system and start looking for free hosting services on the web. This happened to the blogging software I've been using. I started with a blog plugin for dokuwiki, but the number of other plugins I had to install just to get some basic blogging functionalities was crazy.
WordPress seems like a nice platform, it is open source and there is a easy way to export the posts from the system so that you are not locked in. Over the next few days I will be migrating my old posts over here.