Merchants who advertise products on Amazon.com got some confusing news on Tuesday. Amazon is discontinuing its Product Ads program, and it's replacing it with a new Text Ads program. But no one seems able to find information about the Text Ads. EcommerceBytes could find nothing about it on Amazon's website, and the company didn't respond by press time. The move follows the closure of its web-hosting service called Amazon Webstore in March, a solution that let sellers build their own standalone website.