How to Wiki
From 21CC Wiki
Commenting on pages
You can easily comment on discussions without needing to know any special formatting! When you come to a page you'd like to comment on, simply click on the 'discussion' tab up top. You can type your text, hit "Save Page," and your comment will appear! These comments will appear only in the "discussion" tab of a page. If you want your comments to appear on the front of a page you have to push either the edit button at the top, or to edit a specific section, the edit button(s) on the side.
Page/Section editing
There's a lot of fun stuff mediawiki markup will allow you to do. A few links to help introduce you to the ins and outs of posting videos, creating new pages, and so forth:
If you're new to wikis a great place to start is: MetaWiki basic editing guide
An excellent resource is the Wikipedia Tutorial
To escape the boring text and watch a more entertaining video: Time for YouTube!

