Jottit is the insta-wiki
This is probably the quickest way you have ever seen to create a Web page or wiki.
Here's a cool tool that's kicked off a bit of a Twitterstorm this evening: Jottit. It's a very simple, Web-based text editor and publishing service. It can create a brand new Web page or wiki in about 10 seconds flat. For an example, you can see a draft of this story, which I composed in Jottit, as a Jottit page.
Jottit is also part wiki. The review page I just linked to is closed to edits, but it's easy to create a page that anyone can tweak. Here's one, for example (if you try it out, please keep the edits clean). You can also lock a site so that visitors need your password to view it.
All pages have a wikilike revision history. Also, wikilike, you can create subpages by just entering wiki codes for new pages.
You can also use HTML as the Jottit formatting language, to create links with HREFs, include images with IMG SRC, and make lists with "<li>" tags. That's a small thing for most people, but if you're a blogger accustomed to hard-coding your posts, it means you don't have to learn yet another formatting scheme for this platform. What I like even more is that there's a live preview window for Jottit's editor: As you type, your text and formatting results appear in real time in a window to the right of the editor. So it's a great playground for experimenting with HTML, as well as being a pretty cool insta-wiki.
For publishing a small site really quickly, I've never seen anything quite like this. I'm not sure Jottit is a programmer's experiment or an actual business, but it's very slick, either way. Check it out.