If you haven't been following the Google anti-trust trial you should be.  Some really interesting info is coming out about how Google slithers works.

Public KNowledge publishes some nice weekiy summaries:

U.S. v. Google: Everyone Uses a Search Engine, Not Everyone Uses Social Media. Recapping Week 4

https://publicknowledge.org/everyone-uses-a-search-engine-not-everyone-uses-social-media/