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Perpetuating current data silos by continuing to "give your data to a site" was, Berners-Lee asserted, "not ideal." He argued instead for wider adoption of new or existing Web specifications such as OAuth and RDFAuth, enabling the individual to store data relevant to themselves wherever they felt fit, and assemble it at will within one or more Web and local applications of their choosing at the point of need. "Acquaintance-based social networks," Berners-Lee suggested, were "the tip of the iceberg," with his notion of the emerging Giant Global Graph "exist[ing] above the Web" and creating opportunities for far richer functional and role-based interconnections. Turning to consideration of the Web itself, Berners-Lee remarked that "Openness tends to be an inexorable movement through time" He juxtaposed the 'Web Application Platform' with proprietary solutions to parts of the problem such as Flash, AIR and Silverlight. This Web Application Platform, he argued, relies upon W3C specifications and other open standards, and it is increasingly moving toward specifications that are small, modular, and interoperable. Moving toward his conclusion, Berners-Lee reiterated the importance of Linked Data again saying "Linked Open Data is the Web done as it should be." Returning to his earlier discussion of modularity, he suggested that existing specifications such as those for JavaScript be reworked, carving JavaScript's functionality up into a series of modular packages. Each of those packages should then be assigned a URI, and the Semantic Web should be used to describe the packages, their dependencies, and their interrelationships. Used in conjunction with the resulting applications, Linked Data would provide, "elements of an ability to do things [with data] that cross application boundaries." Turning to Q&A, Berners-Lee was first asked to comment on the concept of 'Web 2.0′, which he did; "Web 2.0 sites a

And of course it is the incredible variety in data formats used by Web 2.0 apps that forces the creation of new data silos on the Web. Web 2.0 is bringing us the same kinds of incompatible data format issues forced on software users since the beginning of the proprietary software industry.

I saw Live-Mesh today at the Web 2.0 Expo. It's still flashware, but very cool flashware. (Or is that "silverware" :) If they get this right the web will belong to Microsoft. I disagree with John that mesh will be standards base. Yes, mesh will work with HTML/CSS amd MAYBE JavaScript. But it will also work with the prorietary XAML, Silverlight, Smart Tags - LINQ. All of which are proprietary alternatives to what mesh won't support :: the advanced format standards from the W3C - XHTML, CSS3, SVG, XForms, CDF, RDF, RDFa and SPARQL. Live-Mesh will break the open web just s surely as the MSOffice SDK OOXML <> XAML conversion component will break the open web future into a Google consumer web, and a Microsoft business web.