Very Quick Wiki is a JSP/Servlet WikiWiki Web clone. It is installed by dropping a single WAR into Tomcat, Resin, etc. It features built-in filesystem or MySQL backend, email notification, diff, usernames, file upload /attachment, admin/topic-locking, recent changes, search engine, standard Wiki markup, and optional HTML support.
Galena was originally designed as a modular bot to serve commands on various protocols (Jabber, IRC, email, HTTP, FTP). Because of its design, Galena2 developed into a framework for server side applications, especially for Web applications and content management systems (CMS). Addins like wiki, message board, and news system are already included.
Team Elements is a collaboration and project management Web application featuring wikis, news and blogs, project plans, assignments, team members, shared discussions, announcements, lists, issue tracking, document storage, full-text search, reporting, and personalized RSS feeds. Users can create a project, then invite others to participate. It's designed for professional and personal use, with each project space containing a full set of permissions and users. The Team Elements framework powers ConcourseConnect.
Rhizome is a Wiki-like content management and delivery system that exposes the entire site including content, structure, and metadata as editable RDF. This means that instead of creating a site with URLs that correspond to a page of HTML, you can create URLs that represent just about anything. It was designed to enable non-technical users to create these representations in an easy, ad-hoc manner. For developers, this allows both content and structure to be easily repurposed and complex Web applications to be rapidly developed.
SearchLog can be used as a searchable weblog. It is designed with usability in mind, and uses highlighting and easy linking between entries to give the user maximum power for minimum effort. It is much more than a weblog, however. It was designed as a knowledge management tool. It serves as a personal information management tool and portal. It is powerful and versatile enough to do several jobs well.
GeboGebo is a wiki system written for tdbengine. It stores all data in a local database structure and thus provides an indexed fulltext search. It uses a simple syntax, and has user lists, pages history, a missing pages list, and a recent changes list. Image and file upload are possible, but can be disabled. This allows it to work as a small document management system. A blacklist allows you to lock existing pages from being edited or new pages from being created. It can also be run in static mode, where all pages are additionally held as static HTML pages.
Oddmuse is a Wiki engine, a CGI script that creates an entire Website with editable pages. By default, anybody can edit the pages. The entire site can be made read-only, and single pages can also be made read-only. In that case, only people having the admin or the editor password can edit pages. This way, the Wiki can be used as a cheap, simple, and easy-to-understand content management system (CMS). The site can also be switched to Weblog style, such that anybody can post comments, but only the editor can add new pages.