The search engine manipulation effect (SEME) and its
possible impact on the outcomes of elections
http://www.pnas.org/content/early/2015/08/03/1419828112
http://www.pnas.org/content/pnas/early/2015/08/03/1419828112.full.pdf
Taming Big Tech: The Case for Monitoring
How, working in the shadows of the internet, researchers developed a passive monitoring system that might soon make Big Tech companies accountable to the public — and even save democracy.
https://hackernoon.com/taming-big-tech-5fef0df0f00d