Wikispaces!

TiddlyWiki is a single html file with all the characteristics of a wiki - including all of the functionality (including editing, saving, tagging and searching) and the style sheet. Because its a single file, its very portable - you can email it, put it on a web server or share it via a USB stick. It has a broad range of tools and an ever expanding plethora of plugins.

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.

Fandom is a community-based service that allows anyone to create a wiki on virtually any subject. Discover, share and add your knowledge! Wikia is financed by advertisment!

Referata offers hosting of semantic wikis, allowing you to add, structure and store data so it can be managed, shared, browsed and analyzed in as many ways as you choose. Free: unlimited Wiki pages and 100MB file storage. 5 Languages: English, Deutsch, Español, Português do Brasil, Russian. It can also be used to host ordinary wikis. It runs a slightly modified version of the MediaWiki software, with several extensions installed.

Online collaborative wiki hosting for organizations,etc.Now it's easier than ever to build a website. Publish content, share your documents, collaborate with friends or coworkers, create a place for your community!

Torchpad is a platform that allows you to create your own wiki site.

Miraheze is a free wiki farm, you can request your wiki which is 100% free and has no ads. The code of Miraheze is opensource (Github.com/Miraheze). You can change your logo, request extensions you need, and many other features. Help is provided via email, IRC, Phabricator.

This freely available OpenSource Software Wikipedia’s popular software engine MediaWiki into a fully-fledged EnterpriseWiki solution. Companies can continue cherishing MediaWiki’s numerous advantages and automation capabilities; with BlueSpice, they can now work even more comfortably, safely and more effectively.

LionWiki is a minimalist Wiki engine programmed in PHP. It is extensible, templatable, file based (it doesn't need database like MySQL) and requires just one file to function. It is suitable for small websites, personal notebooks or journals. Core LionWiki consists of just one file. It's very easy to install and for most uses contains everything you need to run small wiki site. It's identical to index.php file found in full featured LionWiki. If you find out, that you need some additional functionality, you can download any plugin from LionWiki website and place it into plugins directory (no installation needed). Core LionWiki comes with configuration and template integrated inside index.php, both can be changed inside index.php or overriden by using external template and/or config file...LionWiki appearance can be easily altered using template mechanism. Right now, there are five templates. You can download them with right click and "save link as". »

Gamepedia.com is the authoritative source for video game information on the internet. In addition to hosting the official wikis for over 200 titles such as Minecraft and Titanfall, we also maintain wikis for smaller titles and independent productions. Anyone can make changes to any Gamepedia wiki, with a flexible staff of wiki managers to screen and approve pending content.

We believe that IT documentation should be standardized, collaborative, and effortless to maintain; we believe that great documentation enables a culture of accountability, frees “brain-locked” information, and ultimately increases the efficiency of your staff. Gain the immediate confidence and trust that your IT assets and procedures are documented properly with IT Glue.

UserPress is a wiki plugin for WordPress offering sophisticated functionality wrapped in a simple, intuitive interface. UserPress allows users to edit and create content using your front-end theme (as opposed to the wp-admin area), much like Wikipedia. UserPress can easily take advantage of the thousands of plugins already built for WordPress. UserPress is going to change the way you think about collaborative media.

ATWiki - TiddlyWiki for Windows. A unique non-linear notebook for capturing, organising and sharing complex information.

Online collaboration software for groups, coworkers, and teams to share documents and codify information into a best practices manual for all employees and new hires in order to accelerate business growth.