The Open Data Movement aims at making data freely available to everyone. There are already various interesting open data sets availiable on the Web. Examples include Wikipedia, Wikibooks, Geonames, MusicBrainz, WordNet, the DBLP bibliography and many more which are published under Creative Commons or Talis licenses.
The goal of the W3C SWEO Linking Open Data community project is to extend the Web with a data commons by publishing various open datasets as RDF on the Web and by setting RDF links between data items from different data sources.
RDF links enable you to navigate from a data item within one data source to related data items within other sources using a Semantic Web browser. RDF links can also be followed by the crawlers of Semantic Web search engines, which may provide sophisticated search and query capabilities over crawled data. As query results are structured data and not just links to HTML pages, they can be used within other applications.
Rhizome is a Wiki-like content management and delivery system that exposes the entire site -- content, structure, and metadata as editable RDF. This means that instead of just creating a site with URLs that correspond to a page of HTML
Semantic MediaWiki (SMW) is a free extension of MediaWiki – the wiki-system powering Wikipedia – that helps to search, organise, tag, browse, evaluate, and share the wiki's content.
The Bibliographic Ontology aims to be the basis ontology used to describe bibliographic things on the semantic Web in RDF. This ontology can be used as a citation ontology, as a document classification ontology, or simply has a way to describe any kind of
The W3C has a formal track for making standards specs. The specs answer a lot of questions, but not all of them. This wiki is for connecting the people who make the specs with the people who build on them.