Dump
Here is a list in more or less random order that could be relevant to the wiki and that need to be read/quoted/ordered in appropriate pages:
https://medium.com/@timmycarbone/google-analytics-modifies-your-data-24d4d6366210
https://www.nature.com/articles/s41599-017-0021-4
https://www.technologyreview.com/s/539021/probing-the-dark-side-of-googles-ad-targeting-system/
https://jacobitemag.com/2017/12/05/a-priesthood-of-programmers/