Make sure to check out the latest release of TextPattern: version 4.0.7. The new version of the best blogging CMS comes with some fresh features like a new tag parser (unlimited nested tags), WYSIWYG preview for all articles, a XML-RPC server (for desktop blogging) and an optional expiry timestamp.
TextPattern is a fast and lightweight content management system that is optimized for blogging but of course you can use it for every purpose. I’m using to run this blog. You should definitely give it a try!