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.
JOTWiki is a full featured wiki engine, which allows you to create, edit, and link Web pages easily without having to learn a difficult language like HTML. It features no dependencies other than a J2EE engine, multiple namespaces (allowing you to have multiple "sites"), easy administration, template support, a built-in database, saving of pages in plain text, and full support for profiles, users, and permissions.
The KiWi core system is a flexible platform for building different kinds of semantic social software applications on top (currently the Semantic Wiki and the TagIT application). It provides all the core services required in such applications, like editing and tagging, the storage of content and associated meta-data, its own triple store, transactions and versioning over content and meta-data, a linked open data server, and many small features semantic social software developers will like (like convenience services for working with ontologies or SKOS thesauruses, etc.).