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Looking at Michael Pick's video DataPortability - Connect, Control, Share, Remix and on the dataportability.com home page, I saw that RDF was included in a brief list of standards involved, and something occurred to me about the value of RDF in attempts to share data across applications such as social networking sites-in particular, why it's better than XML for this.

The Semantic Web brings with it the opportunities for users to get smarter search results, and for site owners to get more targeted traffic as users find what they really want. But these benefits don't just magically appear. This article leads you through the aspects of both information architecture and general infrastructure you need in place to truly take advantage of this burgeoning opportunity. This article discusses what you need to know to make your Web site part of the Semantic Web. It starts with a discussion of the problems the Semantic Web tries to solve and then moves to the technologies involved, such as Resource Description Framework (RDF), Web Ontology Language (OWL), and SPARQL Protocol and RDF Query Language (SPARQL). You'll see how the Semantic Web is layered on top of the existing Web. It then covers some issues that you want to know about when you plan a new Web site and also gives specific examples of how to use technologies like RDFa and Microformats to enable your existing Web site to become a part of the Semantic Web.

"Although the Semantic Web (SW) is still very much in its infancy, there is already a lot of data out there which conforms to the proposed SW standards (e.g. RDF and OWL). Small vertical vocabularies and ontologies have emerged, and the community of people using these is growing daily.... "

"A new microformat for online news has been developed by the Media standards Trust and the Web Science Reaseach Initiative: it's called hNews. The goal is to make relevant elements of news articles machine-readable, and at the same time, to disply these metadata in a user-friendly format. ....."

Hopefully by the end of the year, the semantic search technology of Twine will make a further step into the construction of structured data on the Web, and its successor T2 will be released. From an interview with Nova Spivack (CEO of Radar Networks, the company behind Twine) we can argue four main points..........