In short to add wiki-style functionality to my blog, the only functionality that is really needed is that 1) I myself have a edit button on static items, 2) the ability to categorise and tag those items, and 3) keep those items outside of the blog posting stream on the front page, and outside of the RSS feed. WordPress pages fit that description, when I’m logged in, and after adding a plugin to allow categories and tags on pages. So a page based section it is, or rather, will be over time.