"If a hyperlink is (or is deemed to facilitate) a breach of copyright, where does that leave a public library catalogue?"
Bad example as libraries typically possess legal exemptions from copyright enforcement because of their specific function. Meanwhile, a card catalog does not possess inline information that can retrieve the actual content as you retrieve the card. An online catalog might do this, though, via inline data that's retrieved by the computer and then displayed for you.
Biting the hand that feeds IT
