Why has W3C developed the Semantic Web logos?
Until now W3C has not had a high-level representation of the Semantic Web. Previous logos (such as the RDF logo) represented individual technologies. The new technology-specific buttons have been designed to be part of the Semantic Web brand. As we move forward, we are likely to create and use more specific imagery for some of the technologies that make up the Semantic web, e.g., for T-shirts or mugs. In that context, we are likely to use familiar blue RDF triple.