The WordPress Wiki Plugin adds Wiki functionality to your WordPress powered website.
This Plugin is another revolutionary first of its kind brought to you by the guys who made the WordPress e-Commerce Plugin.
Current feature set:
- Ability to check posts and pages as “Wiki Editable”
- Ability for people to subscribe to your site and edit documentation
- Supports Internal links and Piped links
- Wiki Style Table of Contents (based on h2 and h3 tags)
- My Contributions Widget
Download link: http://downloads.wordpress.org/plugin/wordpress-wiki.zip
More information: http://wordpresswiki.org/community-documentation/