There is a lot of hype around about the semantic web and web 3.0 at the moment, but how many people actually know what its all about (note: its not tagging a youtube video so that it shows up in the natural links) . This article explains the different technologies which are currently in place; the top down and bottom up methods of classifications as well as who are the key players in this market. There are some pretty complex technical explanations to get to grips with, but it’s a great primer for understanding these emerging technologies.
Brendan McNulty 