Users never have to use the wp-admin/backend. You can even allow visitors to make changes without registering or logging in.
We've also built a cool widget for navigating and re-ordering pages.
You can start using UserPress right away with your WordPress theme. But you can also customize your wiki-related template files so that they better meet your needs.
Whenever a wiki page contains links to other wiki pages on your site, clicking on that link will reveal an window with the page content and a link to view the full-sized page.
This feature is optional so you can turn it on and off as needed.
The administrator has complete over who can create and edit pages. What's more, individual pages can be have their own custom user permission settings.
Sort and manage your wiki articles: recently added, recently edited, recently discussed and alphabetical order. Additionally, you can use categories, tags and sub-pages.
Users can follow wiki pages to keep track of changes. The subscription manager displays recent changes to tracked pages. (Requires BuddyPress.)
Wiki pages can be flagged when they require attention due to poor or inappropriate content (much like Wikipedia/MediaWiki). What's more, administrators can easily create custom flags using wp-admin.
UserPress can compare changes to documents (diff) while also attaching a note with each revision.
When users are creating a new page, similar existing pages are automatically displayed in order to prevent duplicate content.