Mark Epstein in WSJ (paywall; sorry):
In 2017 Google and Facebook have accounted for 84% of all digital advertising outside China
What could go wrong?
One political blog that posted an article trying to distinguish the ‘alt-right’ from white nationalism received a warning email from Google’s AdSense team. An editor took the article down, explaining to readers that the blog ‘needs revenue from the Google ad platform in order to survive.
Advertisers rule. Money talks.