5 Reasons Google Shut Down Its Affiliate Network - GeekWire: "Given the scale issue, Google’s decision to launch an affiliate network was always perplexing. Google originally positioned the move as a way to give customers two tools to manage ads on a Cost per Acquisition (CPA) basis (GAN and Conversion Optimizer). Guess which product won? As Per Peterson, co-founder of Impact Radius, points out Google has always had a love/hate relationship with affiliate marketing. The Wild West mentality of the industry constantly ran afoul of Google’s own algorithms. And it’s hard to ignore the irony that last year’s rollouts of Penguin and Panda specifically targeted many affiliate sites as being too spammy. Yet some of these were the same affiliates that GAN was trying to work with."