Yeah, I have no idea on what topics/headings there will be, or how it will be structured at all. I plan to contribute a lot, but don't really know where to start/how I should lay things out. I could even do some simple write-ups offline while waiting for the wiki to go up.
It's not a matter of getting content; we have yet to decide what platform/wiki software we will use to host the content on. Speaking of which, I'll make a thread about that.