After setting up Rewrite.drbacchus.com as a sandbox for the mod_rewrite documentation rewrite, I essentially did nothing with it for a few months.
This evening I started working on the section about the RewriteRule flags. They are all documented in the RewriteRule docs, but in the absense of examples, a few of them are slightly hard to understand. N, for example, is extremely hard for most people to grasp the first read through. And P really needs a bunch of examples.
So, hopefully this can develop into a little more than merely a disorganized wiki.