SushiWiki
sourceforge.net
A wiki-like Web application running on .NET platforms. It is written in C#, uses ASP.NET features and stores data in SQL databases or flat XML files.
Vanilla
vanillasite.at
An extensible wiki engine written in REBOL, with weblog features and a streamlined interface.
Sputnik
spu.tnik.org
An extensible wiki written in Lua. It can also be used as a framework for building wiki-like applications. Contains documentation, forums, and a section for hosting user modifications.
Protonotes
protonotes.com
Wiki-style Web page annotation that allows user groups to add and share notes collaboratively on any Web page.
TiddlyWiki
tiddlywiki.com
An experimental microcontent WikiWikiWeb built by Jeremy Ruston. It's written in HTML and JavaScript to run on any browser without needing any serverside logic. It allows anyone to create self-contained hypertext documents that can be posted to any web server, or sent by email.
RWiki
pub.cozmixng.org
A Japanese WikiClone built using dRuby, ERb, RDtool, MutexM; inspired by Tiki.
WikiWeb, Inc.
wikiweb.com
Commercial Windows-based implementation written in Smalltalk with limits on allowed named users, Access support, and ODBC support with more expensive versions.
coWiki
cowiki.tigris.org
A (now defunct) content management tool with an intuitive markup language, unixlike access management, a directory structure and seamless page renaming.
GeboGebo
gebogebo.org
An open source wiki system based on tdbengine. It is small, easy to set up and administrate and stores all data in a local, indexed database. It can optionally hold all content as static html pages, too.
Nanoki
alt.textdrive.com
A simple, elegant wiki engine implemented in Lua. Site contains documentation for the engine.
Platypus Wiki
platypuswiki.sourceforge.net
A Semantic WikiWikiWeb that uses RDF to manage metadata and ontologies.
instiki
instiki.org
A basic wiki-engine in Ruby with three-step installation. Contains a userguide, links to an IRC channel, and a mailing list.
Wiki Engines
c2.com
Links to dozens of Wiki system types, in many programming languages.
Traction TeamPage
traction.tractionsoftware.com
Enterprise Wiki Software for download and installation. Includes support for wikis, blogs, social tagging, discussion, document management, and search.
OpenWiki
openwiki.com
An IIS/ASP implementation with strong XML support.
WikiMatrix
wikimatrix.org
A tool to compare the features of various popular wiki engines in comfortable side-by-side tables.
Perspective
high-beyond.com
Open Source wiki engine, written in C#/XSLT, that supports WYSIWYG editing, file attachments, searching across pages and attachments (including MS Office documents) and a flexible security model.