Monday, January 19, 2009

Web 3.0

The definition of Web 3.0 is difficult to be precise. Especially there is no clear boundary between and Web 2.0 and Web 3.0. “Web 3.0 Emerging” by Jim Handler, IEEE Computer, Jan 2009 is a good article of articulating what Web 3.0 technologies cover.

Web 3.0 extends current Web 2.0 applications using semantic web technologies and graph-based open data. Web 3.0 establishes relationships among data elements from the same or different distributed web 2.0 applications. Web 3.0 integrates data elements to produce new mashups and combined applications.


The resource description framework (RDF), SPARQL query language (a SQL-like standard for querying RDF data) and the web ontology language (OWL) are the basic technologies used by Web 3.0 applications to link or integrate, mashup data from multiple websites or databases. But early Web 3.0 applications may not use RDF and OWL directly.

As we know, some successful and dominant Web 2.0 applications are Flickr, Wikipedia, Facebook, MySpace and YouTube. And the merging Web 3.0 applications are Metaweb, Powerset, Radar Networks and more.

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