From W3C Wiki
PlatypusWiki is an enhanced WikiWikiWeb with ideas taken from SemanticWeb. It's a SemanticWikiWikiWeb or SemanticWiki for short. It offers a simple user interface to create a WikiPage plus metadata according with W3C standards. It uses RDF (ResourceDescriptionFramework), RdfSchema, and OWL (WebOntologyLanguage) to create ontologies and manage metadata.
PlatypusWiki is an ongoing project started on 23th December 2003. A pre-alpha version is distributed to test the concept and have a feedback from some earlier users.
A temporary demo is available at http://platypuswiki.sourceforge.net/demo/.
... we are searching for a free housing server with Tomcat v5.x -- PaoloCastagna