A Wiki enables documents to be authored collectively in a simple markup language using a web browser. "Wiki wiki" means "super fast" in the Hawaiian language, and it is the speed of creating and updating pages that is one of the defining aspects of wiki technology. The Moodle Wiki module enables participants to work together on web pages to add, expand and change the content. Old versions are never deleted and can be restored.

Creating a Wiki:

From the Course menu

1. Click on Turn editing on link in the Course Menu section.
2. Click on the dropdown box labeled Add an activity.. next to the area you want to add a Wiki to. Select the Wiki option.
3. In the Name field type the name of the Wiki and enter a summary of it in the Summary section.
4. Choose the Type of Wiki. For more information on this click here.
5. Choose if you wich to Allow Binary Files. If you allow binary content (such as images), you have two possibilities: 1) You can upload and use images on wiki-pages. When editing a page, an upload form will be displayed for uploading images. After a successful upload, an image code is displayed that you can embed in your pages using square brackets. For example: [internal://myimage.gif]. 2) You can attach files to a Wiki Page which can be displayed by the attachments action. The size is limited to the setting made in Moodle.
6. Choose the Wiki Auto-linking Options. In certain situations, you may not want automatic linking based on CamelCase words. If this is so, check this box to disable CamelCase linking. WARNING -- CamelCase is a standard wiki feature, and disabling it may cause other imported wikis to work incorrectly. Use this feature only if you are absolutely certain you do not want CamelCase linking.
7. Choose Student Administration Options. Certain administration options can be turned 'on' or 'off' for students. When 'on', these options only take affect for wikis that can be edited by the student. When 'off', they will not appear in the administrator menu.
8. In the Optional page name section, you can choose an initial Page Name for wiki. This means if you want the first wiki page name to be something other than the wiki name, you can specify it here. This name will become the first page of the wiki for every created instance of this wiki. If you leave this field blank, the initial page name will be the wiki name, unless you select a page in the 'initial page' field.
9. Choose the Group Mode. The group mode can be one of three levels: No groups - there are no sub groups, everyone is part of one big community. Separate groups - each group can only see their own group, others are invisible. Visible groups - each group works in their own group, but can also see other groups. The group mode can be defined at two levels: 1) Course level - The group mode defined at the course level is the default mode for all activities defined within that course. 2) Activity level - Each activity that supports groups can also define its own grouping mode. If the course is set to "force group mode" then the setting for each activity is ignored.
10. Choose if you wish to allow the WIki to be visible to instructors by either choosing "yes" or "no" from the drop box next to the Visible to instructors section.
11. Don't forget to save your changes!

For further information, click here.