Amazon to no longer pay for paid search referrals
associates.amazon.ca
associates.amazon.ca
This sounds questionably legal. If I write a book about the Kindle, I can't buy a search ad to advertise it?
I really like Amazon, but not when I read things like this.
Amazon is just trying to take them out of the equation, which makes perfect sense because they provide nothing of value to Amazon; they are just middlemen who drive up the cost of Amazon's CPC campaigns and collect commissions from customers that would have ended up with Amazon anyway.
Just because people are clicking an ad that leads them to another page with more ads does not mean there's any dilution going on. These websites are providing a service Google and other can't/won't do.
In the best case scenario (bidding against an affiliate who is good at arbitrage), Amazon probably breaks even because they get good sales from those affiliates with whom they're competing for keywords.
But in the worst case scenario, Amazon is competing against their affiliates who are bad at arbitrage (people who are losing money) and are blocking Amazon from winning CPC bids without actually effectively converting those clicks to commissions.
And I would bet that there are far more people losing money to arbitrage (amateurs who bought some ebook from a spammer about how to make money on the internet) than people who are profiting.
The net result is that google and yahoo get more money.