Yes, Amazon's share of ad revenue has been increasing for quite some time.
Why is this?
Short answer --- simple logic.
Ads on Amazon are within the "context" of actively searching and seeking to make a purchase.
Personalized ads from Google follow you everywhere you go on the internet --- even long *after* a purchase has been made.
This privacy invading BS lacks any sensible "context" and is counterproductive and generally more irritating and annoying than helpful. But lots of advertisers have been convinced it is the best way.
