[labster]

In wiki parlance, we call sets of pages that only link to their own internal information "walled gardens".

In normal people terms, we call them "bad websites". This page was good at being an article, but bad at being a website. Which is why I included the link above, to help humans and algorithms make links to the appropriate information.

But the benefit of only linking to your internal information is more page views and therefore ad revenue. At least in the short term, until users find the good websites. One more way advertising is ruining the world wide web.