You can actually use Thunder's Keep to much more than you can imagine.

If you go to www.vastgota.org and click on "Kalendarium", you will get a calendar, and it doesn't looks much to the world, but:

At the bottom of the page you have a link that says "Update this page". If you are a member of the right forum on Linkmeet (A site similar to Thunder's Keep) and logged in there, you get an edit-forum and can update the calendar.

And if someone screws up, you can see who did it and easily restore the page. And if two people are trying to update it at once, the second will be stopped from writing over the other's changes.

So this is great if you already have a web-site, but you want one page to be possible to edit by many people. Typically a right-now or calendar-page.

This is done by exporting a wiki-page as "raw html". Then you have to write HTML, instead of pseudo html just as if was a real web-page. But then you can make it look in any way you want.