Free server-based software, licensed under the GNU General Public License (GPL) and designed to be run on a large server farm for a website that gets millions of hits per day.
Free editable map of the whole world.
A selection of free and easy tools for creating wiki web sites.
Local wiki client designed for managing small items of content.
WikiWikiWeb system based in PHP featuring RSS feeds, simultaneous editing, calendar options, and other options.
Web-based collaboration platform for running a project development space, a document management system, a knowledge base, or any other groupware tool.
Makers of wiki technology that lets users collaborate and build upon shared documents.
Wiki script that includes site search, versioning, page and site-wide lockdown features, and more.