The Semantic Web. Is this the next big thing in cyberspace? According to this Tech Review interview with Sir Tim (Berners-Lee) it is.
Most of this stuff goes over my head as I find it hard enough to understand XML much less something that seeks to give context to data on the web. But what bothers me the most, being a lazy sort of person, is that it looks like more work for me.
As in all things, the question then becomes are the benefits worth the costs. I don't know if that question can be answered yet. But feel free to read the article and make up your own mind.