Is there any way to find out what the ad networks think my interests are and why they are showing me such ads?
Google gives hand wavy general reasons such as those found here: https://support.google.com/accounts/answer/1634057?hl=en
But I'm interested in knowing what specifically the ad networks think I am interested in and why they think that.
I found this page which gave a rather fascinating insight into what Google thinks my interests are and what my demographic profile is: https://adssettings.google.com/authenticated It was remarkably accurate except for a few things, but it did not indicate I have any interest in the ads that Google is showing me on this topic. So I'm puzzled as to why I'm seeing these ads - what bit of the Internet is concluding this is a topic of interest to me?
This ad is based on:
Your visit to the advertiser's website and/or app
Google's estimation of your Household Income
Your age group
Just block ads and tracking in general and Google in particular. If DuckDuckGo can operate successfully without tracking, Google and their cling-ons can too. Figuring out how and why --- that's their problem, not mine.
Google is mainly an annoyance, kind of like a parasite. If Google shut down tomorrow, any significant loss of functionality could be easily overcome by the end of the day for most people.