Best wiki engines of linux

I just want to share this information for all the users who wants to know about best free wiki engines of open source.
A Wiki engine is a type of collaborative software that runs a wiki system. This facilitates web pages being created and edited using a web browser. This type of software is usually implemented as an application server that runs on one or more web servers.

the content is stored in a file system, and changes to the content are typically stored in a relational database management system (such as MySQL), although some simple wiki engines use text files instead.

Here is the list of wiki engines

MediaWiki Collaborative editing software that runs Wikipedia
DokuWiki Targeted at developer teams, workgroups and small companies
MoinMoin Advanced, easy to use and extensible wiki engine implemented in Python
PmWiki Offers a simple-to-install system
PhpWiki Wiki engine written in PHP
Zwiki Powerful, innovative engine based on the Zope web application server
XWiki Enterprise wiki written in Java
MindTouch Deki Web-based enterprise collaboration, wiki software and mashup platform
Foswiki Supports the embedding of active and passive macros
JSPWiki Built around the standard J2EE components of Java, servlets and JSP
WackoWiki Small, lightweight, handy, expandable, multilingual written in PHP
Triki-Wiki Simple, robust, flat-file XHTML-Wiki in PHP
WikkaWiki Flexible, lightweight, standards-compliant wiki engine
TWiki Easy to use enterprise wiki and collaboration platform

Got this information from linuxlinks.com