I added a DocBook XSL customization layer to my DocBook Kit that outputs an HTML/PHP version of the document that automatically integrates with a WordPress blog. The stylesheet also (optionally) adds a link to the downloadable PDF of the document.
The custom stylesheet is based on the standard DocBook XSL XHTML stylesheet. However, instead of inserting an HTML header, it inserts PHP calls to include the WordPress headers and footers. The only tricky part of this is to tell WordPress what the title of the resulting page should be. I hacked this in by creating a class with the bare minimum fields required by wp_title() (which is used by WordPress to print the title of the document). The resulting template looks like this: