Some (including myself) have suggested that a rationality wiki would be a useful supplement to this site. In the spirit of getting things done, I set one up here: http://rationality.tiddlyspot.com/ The password to save edits is omega.
The TiddlyWiki framework it uses is very lightweight and won't be satisfactory as a long-term solution. I do think it has potential as a minimalist beginner's guide though, and could serve us well for the time being. I am not very knowledgable about wiki software in general, but TiddlyWiki has served me well for multiple personal wikis. I planned on developing it a little further before revealing it to the community, but other commitments demand my attention. Please feel free to contribute.
Comments, suggestions? Is it better to start with something that can handle a significant user base and future growth, or should it stay small and self-contained to remain accessible to beginners?
Update: I think it's becoming clear this can't serve as more than a short-term hack, even for a minimalist beginner's guide. At least it is provoking discussion. I'm still hoping for contributions so we have a leg up once an official solution emerges. If you do contribute, please try to keep markup to a minimum to facilitate a future conversion.
Could we maybe make the wiki questions-first, or questions-indexed, instead of topics-first? So that one walks into the wiki and sees the questions with which we are engaged (each linked to the partial progress we've made to date, and the open sub-questions on which we'd particularly appreciate new contributions)? Questions, or problems for which we want solutions, could make for a more motivating, curiosity-arousing, this-is-why-we're-bothering approach to a table of contents. (And then new posts could be added to the appropriate question, and newcomers could find that new post fairly naturally as they follow out their questions. Also, writers might see how certain potential posts might add to a common project.)
I'd be happy to make a first draft questions list in that direction if people think it a good idea.