Neal Stephenson has a book out called Fall, that has the fake news phenomena as a prominent feature. It gets to the point that so much stuff on the internet is fake that only the conspiracy nuts believe any of it. It kind of comes to a head when Provo, Utah is nuked. Except it wasn't. It was all an internet prank that cost the scammers less then $1,000,000 to pull off. After the President flies in to Provo and does a live broadcast, most of the country realizes it was a fake. But even years later the "truthers" still believe Provo was actually nuked and the government covered it up. Sound like some folks we know?