This term Semantic Web has been in the vocabulary for a few years now. It simply means “adding more meaning” to the Web. Today’s web started with a document-centric view. The HTTP URI structure links various documents, but it stops there. It does not go deeper into the meaning. From a document-centric world, the semantic web wants to go to a data-centric world, where data and its relevance are linked.
Here is the definition from Wikipedia – The Semantic Web is an evolving development of the World Wide Web in which the meaning (semantics) of information and services on the web is defined, making it possible for the web to understand and satisfy the requests of people and machines to use the web content. It derives from World Wide Web Consortium director Sir Tim Berners-Lee‘s vision of the Web as a universal medium for data, information, and knowledge exchange.
Watch this latest video of how Tim Berners-Lee talks about the importance of collaboration for the Web where he also explains briefly the Semantic Web.