I was doing some background reading on RDF the other day so I look around to try and see its adoption status and what is really being used for. I had previously experimenting with it but once I include even the skeleton RDF code the HTML would fail falidation. Then I read that the workaround was to include in in a <link> like we included the css and rss (but with a rel type of 'meta'). I.e. W3C's website links to the rdf file like:
<link rel="meta" href="/Overview-about.rdf" />
Looking at the source code of the file, the use of each tag makes sense - apart from the subject tag. Instead of having something like 'world wide web consortium' it is packed with excatly the same keywords W3C uses for its homepage. Can anyone explain to me why they use it this way? As far as I know RDF is a means of flexible and interoperable way of publishing content. If there any reason for someone to include it in a similar way that W3C does?