Wiki is type of website that allows users to add, remove, or otherwise edit and change all content very quickly and easily, sometimes without the need for registration.
WikkiTikkiTavi - WikkiTikkiTavi is a wiki engine is a PHP script that runs wiki sites. Wikis are a revolutionary new form of collaboration and online community. Although there exist many WikiEngines and wikis around the world, this wiki is dedicated to the WikkiTikkiTavi and those of you who might want to use it for your wiki
WikkaWiki - WikkaWiki is a flexible, standards-compliant and lightweight wiki engine written in PHP, which uses MySQL to store pages. Forked from WakkaWiki. Designed for speed, extensibility, and security.
Wikepage - Wikepage is a wiki-standard, easy to use and small wiki software derived from Tipiwiki2 (
FrontPage). Wikepage has some security features that Tipiwiki does not have, like password protected structure, and 4 patched important security flaw, table support, upload support, multilingual and multi-site support...etc.
WackoWiki - WackoWiki is Small, lightweight, handy, expandable Wiki-clone written in PHP4.
UniWakka - UniWakka is a Wiki Engine derived from WakkaWiki, a light-weight, easy to install and to configure collaborative editing software for web content. Derived from Wakka-0.1.3-dev, UniWakka is mostly intended for an university or scientific environment.
QwikiWiki - QwikiWiki was developed using a simple design goal. This goal is distinguished by these key principles:
— Self Sufficiency: QwikiWiki requires only a web server and the PHP scripting language.
— Zero-Edit Deployment: QwikiWiki is immediately usable "out of the box".
— No External Database: QwikiWiki processes with only cookies and its file system. There are no (SQL) database requirements.
PmWiki - PmWiki is a wiki-based system for collaborative creation and maintenance of websites. PmWiki pages look and act like normal web pages, except they have an "Edit" link that makes it easy to modify existing pages and add new pages into the website, using basic editing rules. You do not need to know or use any HTML or CSS. Page editing can be left open to the public or restricted to small groups of authors. Other key features are the "Recent Changes" and the "History" links that inform you about what pages have been changed, and the changes made to the current page, respectively.
WikiWikiWeb - A WikiWikiWeb is a web site where anyone can edit the pages through an HTML form. Linking is done automatically on the server side; all pages are stored in a database. This may sound rather simplistic, but a Wiki is a very unique way to collaborate on the Web. I set up a few while working at the New York Times on the Web, and the technical staff really took to them in a big way. They wrote 500 pages in just a few months (all to document the internal systems).
MediaWiki - MediaWiki is the collaborative editing software that runs Wikipedia, the free encyclopedia, and other projects. It's designed to handle a large number of users and pages without imposing too rigid a structure or work flow.
ErfurtWiki - ErfurtWiki is a fast, user-friendly, and highly configurable hypertext management system. It can store its pages and binary content with MySQL, PEARDB/dbx/ADOdb, dba/dbm, PHP-RPC, or flat file databases. It stands out from similar Wiki implementations in that it allows very easy integration into existing Web sites, features case-insensitive WikiLinks, extensive CSS support, multiple admin tools, is not GPLed, and includes documentation. There are over 200 extension plugins, but everything could still be compacted into one core "library" for easier installation and handling. It is useful for larger sites as well as lightweight backend for private homepages, due to its simple image uploading feature.
DokuWiki - DokuWiki is a standards compliant, simple to use Wiki mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and eases the creation of structured texts. All data is stored in plain text files; no database is required.
Deki Wiki -MindTouch Deki Wiki is a free open source wiki and application platform for communities and enterprises. Deki Wiki is an easy to use and sophisticated wiki for authoring, aggregating, organizing, and sharing content. Deki Wiki is also a platform for creating collaborative applications, or adding wiki capabilities to existing applications. Deki Wiki not just an award winning and easy to use web application for sharing, it's also a platform. Deki Wiki is similar to CMS web frameworks like
Drupal,
Mambo,
Joomla and
DotNetNuke, but a wiki in nature; therefore making it community-centric and significantly easier for end-users to participate. Also, it has a complete application programming interface (API) for programmers and extending Deki Wiki can be done in any programming language.
@wiki offers users free WIKI hosting to build his/hew own community website instantly.
Your All-in-one Wiki Resource
, to think i will most probably come across a digg in a couple of months belonging to a new webmasters blog lol 
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