This is an idea I've had for a while, but I have been tinkering with a bit lately due to some work stuff. I want to write a wiki which is just a regular website, on a filesystem someplace, that you edit with Mozilla Composer.
(Yes, I'm aware that XSS is a concern here. Partially that's why I haven't written it yet.)
It would have the same "user filter" aspects as a regular Wiki (you'd have to have a user-agent that could do HTTP PUT and understand how to use it well enough to edit the pages) but it would be a lot easier to edit. I wonder what people would do with it.
"The greatest purveyor of violence in the world is my own government." - Rev. Dr. Martin Luther King, Jr.