[pinkyand]

The article ends in a non serious fashion.So the author discovers his books outside of Amazon.Does this fact has any relevance to how people in general discover books ?

On the other hand, Amazon is Google's biggest threat in general product search(and probably discovery). So surely Amazon is even stronger in books.

And i'm sure Amazon does play with search/recommendation ranking, and publishers see the effect on sales, or else they wouldn't have bothered with this fight.

[spydum]

And just about every retailer does the same with their planograms/floor layout.

[josefresco]

Agreed. Amazon is not required to give equal promotion to every product it sells, and neither is any other retailer. Retailers will promote what sells, not what's fair.