OntoWiki is a structured wiki one of the kind of collaboration tools that support knowledge creation. OntoWiki facilitates the visual
presentation of a knowledge base using map, table and list interfaces. It enables intuitive authoring of semantic content, with an inline editing mode for editing RDF content, similar to
WYSIWYG for text documents. It fosters social collaboration aspects by
keeping track of changes, allowing to comment and discuss every single
part of a knowledge base, enabling to rate and measure the popularity
of content and honoring the activity of users. Ontowiki enhances the
browsing and retrieval by offering semantic enhanced search strategies.
All these techniques are applied with the ultimate goal of decreasing the
entrance barrier for projects and domain experts to collaborate using semantic
technologies. In the spirit of the Web 2.0 OntoWiki implements
an ”architecture of participation” that allows users to add value to the
application as they use it. A white paper discussing OntoWiki approach is available here