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.
Conflux is Web-based groupware and collaboration software. It offers a shared central document repository, shared calendars, tasks and contacts, and an email client. It has support for Unicode, multiple languages, and date/time formats for the English, German, and Estonian languages. Access rights are offered in hierarchical (group) form.
KForge is a stable, enterprise application for project hosting. KForge provisions project services on-demand and controls access with a robust, role-based, single sign-on access controller. Project services include version control systems (e.g. Git, Mercurial, Subversion); project frameworks with mechanisms to plan and track work (e.g. Trac); wikis and mailing lists (e.g. MoinMoin, Mailman); and content management systems and blogs (e.g. Joomla, Wordpress). KForge also provides a complete Web interface for administration of project members and services, as well as a fully-developed plugin system so that new kinds of services can be added easily.