Whilst attending the World Wide Web Consortium Advisory Committee meeting in Bilbao (on today and tomorrow), I realised that one small part of the semantic web initiative, pushed for many years by the W3C, has started to see wide scale adoption.
RDFa is now claimed to be embedded in 3.6% of all public URLs (October 2010), and growing fast. Yahoo! led the way with SearchMonkey indexing, Google followed with rich snippets, and FaceBook have used it to enable their open graph protocol.
For more information see: