I have an affiliate site in an outdoor niche. I have mulled the idea of setting up a web store and dropshipping, since the margins are in the 20% range for most of the products, versus the 5% I get now.
My question is: does Google "penalize" these sites in the SERPs if they also sell the products they review?
If I were Google, I would rank sites that DON'T also sell these products higher, in the interest of delivering users a less biased experience, but I am not Google.
Is there any data on this?