And just like that, with no preamble, real explanation, or even an ending date, Google shutters another product that is used by just not enough people to make Google happy.
From the 'post'
We’re constantly evaluating our products to ensure that we’re focused on the services that will have the biggest impact for our advertisers and publishers.To that end, we’ve made the difficult decision to retire Google Affiliate Network and focus on other products that are driving great results for clients.We’ll continue to support our customers as we wind down the product over the next few months. And there are other products that can help you achieve your goals. Affiliate publishers can continue to earn AdSense revenue through the AdSense network. And marketers can take advantage of other CPA-oriented Google tools like Product Listing Ads,
In other words, use products taht make more money for us ;)