It seems that Sir Tim Berners-Lee has been talking about the Semantic Web forever with little adoption. I think a lot of it is the lack of understanding what it is and the real issues of consistent meta tagging.
Well to help with the first part of understanding why the Semantic Web will change the Internet, watch this 10 minutes interview with Robert Scoble. Then download the Making Sense of the Semantic Web PowerPoint slide that originally came from Mind the Planet.
I hope this clears things up a little.
