Unlike paid search campaigns, for example, affiliate programs take longer to build and develop. However, once your affiliate program is built up, the ROI is generally much higher than that of any other marketing venue available to an online merchant... If things are managed well, your affiliate program investment will pay off, but you do want to give it a few months. For more established brands conversions build up quicker (than for smaller advertisers, or newer online stores). However, regar...