I was pointed towards Ontology is Overrated: Categories, Links, and Tags by Clay Shirky and decided to read a few more posts. This one about the semantic web is interesting too. I particularly like this section on proposed uses for the semantic web:

"This example sets the pattern for descriptions of the Semantic Web. First, take some well-known problem. Next, misconstrue it so that the hard part is made to seem trivial and the trivial part hard. Finally, congratulate yourself for solving the trivial part."

This quote could apply to a lot of issues programmers are presented with. Also this:

"the Semantic Web is divided between two goals, one good but unnecessary, the other audacious but doomed."

The Semantic Web, Syllogism, and Worldview