That basically describes the Google shopping ribbon that appears with searches for products. When Google was good, you'd say a website doesn't exist if you can't find it in the 1st page of Google. The shopping ribbon provides offers from websites that aren't on the first page of my search result. Although I don't think you can pay without visiting the seller's website, this means that these are effectively stores that are more visible through the APIs they use to talk to Google's recommender engine. These suggestions are also no doubt personalized.

This also describes adsense, or Amazon or AliExpress, so it is clearly a successful model. If there is much left of other models. The only thing we have to hopeful about is that the interface is standardized so commodified SWE can be used to make your own Amazon or AliExpress.