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The document discusses the evolution of the web from Web 1.0 to the proposed Web 3.0. Web 1.0 consisted of static, text-based pages, while Web 2.0 added user-generated content and applications. Web 3.0, also called the Semantic Web, aims to make data on the web more accessible and useful by adding metadata and structure using technologies like RDF, RDFS, OWL, and SPARQL. Microformats are presented as a simpler way to add semantics by reusing existing web standards. Open data and APIs are also discussed as ways to freely share and combine data. Examples of sites using these approaches are provided.













































