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The Open Graph protocol enables any web page to become a rich object in a social graph. For instance, this is used on Facebook to enable any web page to have the same functionality as a Facebook Page. While many different technologies and schemas exist and could be combined together, there isn't a single technology which provides enough information to richly represent any web page within the social graph. The Open Graph protocol builds on these existing technologies and gives developers one thing to implement. Developer simplicity is a key goal of the Open Graph protocol which has informed many of the technical design decisions.

The importance of Facebook's Open Graph

URIBurner takes an existing Web-accessible resource (webpage, media) and generates an RDF graph of its metadata using existing well-known ontologies as well as site-specific knowledge. URIBurner then re-presents this data as either a new HTML webpage, or directly as RDF in a variety of serializations (RDF/XML, text/n3, turtle, JSON).

A simple but powerful service that delivers RDF-based structured descriptions of Web addressable resources (documents or real world objects) in a variety of formats through Generic HTTP URIs. The underlying technology is Virtuoso's Sponger, which takes an existing Web-accessible resource (webpage, media) and generates an RDF graph of its metadata using existing well-known ontologies as well as site-specific knowledge. URIBurner then re-presents this data as either a new HTML webpage, or directly as RDF in a variety of serializations (RDF/XML, text/n3, turtle, JSON).

This could be a good way of explaining to people the power of data mashing in a visual way