MediaWiki Help page - http://www.mediawiki.org/wiki/Help:Contents
MediaWiki formatting cheat sheet for print out - http://meta.wikimedia.org/wiki/Help:Reference_card
Basic MediWiki page editing, formatting and creation
Create a inner wiki link on page with two brackets around the link [[link]]
Create an external link by typing in the fully qualified address and link text in single brackets </nowiki>[link text]</nowiki>
When you create the link, click it to create the page.
=== around text will create headlines to the number of = characters (It will also auto-generate a table of contents if you have multple levels)
bold text by using three feet marks '''
when you want to create a new line, enter two paragraph returns
bullet lists begin with an asterisk
- List item 1
- List item 2
- List item 3
Numbered lists begin with a #
- Item 1
- Item 2
- Item 3
Using an image as a link to a page:
You can add a pre-formatted code-style box by starting a line with a space or using the <pre></pre> tags around your text.
Tables are a little trickier, using curly braces and pipes and stuff. See the Site of Sites page for an example.
If you add the PSV9 category to all of these pages we create (use [[Category:PSV9]], they will show up in an index when you click the category and you can navigate through them that way.