They are *about* something, this something can be everything (rdfs:Resource, owl:Thing, ire:Entity) including AnalogResource. Their essential characteristics can be conveyed in a single message. They can be associated with a URI, and can have a WebRepresentation, in this case they are called WebResource. They have some realization, for example: the text of Moby Dick is an InformationResource, a book containing the text of Moby Dick is one of its realization. The intuition behind the class InformationResource is the same behind the class ir:InformationRealization (cloned from Dolce Ultra Lite).