I'm working on a new version of my webapp, Muzoti.<p>I'd just finished sending an email in Gmail to a friend saying how I needed to allow users to choose the key and mode of the scale for their generated piece. The exact text was:<p>"Sure. I think a popup dialog screen should go there that allows you to choose scale, mode, track length etc."<p>Literally 5 minutes later I switched to YouTube and the first recommended video was one by Guy Mitchelmore teaching how different modes work in scales. Specifically: https://www.youtube.com/watch?v=Agln4_z8D8I<p>I thought that was an incredible coincidence as I don't remember seeing any of his videos before.<p>Later on though I started to wonder if Google was actually using my email content to decide what to show me in Youtube! Which, to me, feels completely sinister, even if solely algorithmic..<p>Does anyone know if they do this?
As an aside, is there a way to access all the data related to advertising from google?<p>I don't see anything about it in google takeout.<p>In facebook you can retrieve such data quite easily and see what facebook api users have reported back to facebook about you on.