Initial Wikipedia edits

Editing the text on a Wikipedia page is moderately straightforward. However, formating and major edits can be difficult, as it uses a markup language that you may not be familiar with.
Here are some pages that may help:

• How to edit a Wikipedia page
• Wikipedia sandbox - a place to play and experiment without fear of messing up a real page
• Start new Wikipedia article - a wizard to help you start a new article, much easier if you register