When Mor Naaman from Yahoo said in a special track on Web 3.0 at WWW2007 that the “Semantic Web” is dead, he obviously tried to attract attention. Nevertheless, in my opinion he is absolutely right – there is no chance to “teach” people to annotate web content in a more sophisticated way than “social tagging” (and I´m pretty sure that also in the future it will always be a small community which will tag their content).
But in one point Mor Naaman missed the point: The “Semantic Web” was always there, under-cover more or less. Living in a tin with a lousy HTML-lid. And inside the tin there has always been enough semantics. There is no need to re-invent the data models, the namespaces, the ontologies (at least for most of the basic “things”) as Naaman proposes in his talk (slide 13). How easily all the existing semantics can be released and mapped against the “Semantic Web” (and suddenly it was born again 😉 ) is demonstrated by projects like  or .