We have a lot to sort out, if you want to chip in, please contact Ashok.
The site structure should probably be something like this:
We should keep the tree pretty shallow, if we can, as otherwise we'll end up with freakishly long URIs, which gets tricky, and finding anything gets hairy. Also, moving pages is not pretty, so we should try and think carefully before making sub-sub-sub-pages, and such like.
For now, we can write a few long pages like those above, suggestions of changes welcome in the next few days.