2. Product categories with varying margins. If you have many products, your margins on each one will likely vary. Electronics might have a tight margin, while home decor may have more leeway. If you are looking to establish a flat commission structure — i.e., a set revenue-share percentage, no matter what item the affiliate sells — then evaluate what your product mix is. What percentage of your sales are low margin? What percentage are high margin? From here, develop a blended commission rate that will be profitable for both you and your affiliate.
(g) You will not offer any person or entity any consideration, reward, or incentive (including any money, rebate, discount, points, donation to charity or other organization, or other benefit) for using Special Links. For example, you cannot implement any “rewards” or loyalty program that incentivizes persons or entities to visit an Amazon Site via your Special Links.
Let’s say you have a promotions page where you’re promoting a product via affiliate links. If you currently get 5,000 visits/month at a 2% conversion rate, you have 100 referrals. To get to 200 referrals, you can either focus on getting 5,000 more visitors, or simply increasing the conversion rate to 4%. Which sounds easier? Instead of spending months building domain authority with blogging and guest posts to get more organic traffic, you just have to increase the conversion rate by 2%. This can include landing page optimization, testing your calls-to-action, and having a conversion rate optimization strategy in place. By testing and optimizing your site, you’ll get far better results with much less effort. 
In 1994, Tobin launched a beta version of PC Flowers & Gifts on the Internet in cooperation with IBM, who owned half of Prodigy.[10] By 1995 PC Flowers & Gifts had launched a commercial version of the website and had 2,600 affiliate marketing partners on the World Wide Web. Tobin applied for a patent on tracking and affiliate marketing on January 22, 1996, and was issued U.S. Patent number 6,141,666 on Oct 31, 2000. Tobin also received Japanese Patent number 4021941 on Oct 5, 2007, and U.S. Patent number 7,505,913 on Mar 17, 2009, for affiliate marketing and tracking.[11] In July 1998 PC Flowers and Gifts merged with Fingerhut and Federated Department Stores.[12]