Business Blog Consulting - Is blog tagging becoming more mainstream?:
"There seem to be two major camps in the blogging world, one that believes strongly in the value and utility of 'tagging', whether through a third-party service like De.licio.us or directly on a blog through applications like Technorati, and a separate camp that believes that the lack of standardization in the keywording / tagging community dooms it to inevitable failure and that it's a waste of time and effort."
