Wiki

Weblog Kitchen: Weblog Kitchen
Computers, Software, Groupware, Wiki - Weblog Kitchen. The Weblog Kitchen explores current research in weblogs, wikis, and other hypertext systems.
http://www.weblogkitchen.com/
vanillasite.at :: start
Computers, Software, Groupware, Wiki - Vanilla. An extensible wiki engine written in REBOL, with weblog features and a streamlined interface.
http://www.vanillasite.at/space/start
Platypus Wiki - The Semantic Wiki Wiki Web
Platypus Wiki is an enhanced Wiki Wiki Web with ideas borrowed from Semantic Web. It offers a simple user interface to create wiki pages with metadata based on W3C standards. It uses RDF (Resource Description Framework), RDF Schema, and OWL (Web Ontology Language) to create ontologies and manage metadata.
https://platypuswiki.sourceforge.net/
Free Worldwide Travel Guides - Wikitravel
Computers, Software, Groupware, Wiki - Wikitravel. A project to create a free, complete, up-to-date and reliable world-wide travel guide in a wiki.
https://wikitravel.org/