On one hand, long and ugly affiliate tracking links are a straight giveaway to people that you want to sell them a product (and people may be uncomfortable clicking on them). Therefore, making your link shorter and "nicer" looking will it give a more professional appearance. One of my favorite plugins for making links look "pretty" is the Pretty Links WordPress plugin.
Many affiliate offers allow you to promote them via email marketing, to your list of prospects. Sometimes this involves using their approved email creative, but other times you have free reigns to create something unique and eye-catching. Split testing, as well as learning from the results of each campaign, will help you refine your approach and increase the leads you generate.
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The founder (Misha Wilson) is a well-known and very successful online marketer that made millions of dollars with affiliate marketing. That is definitely a positive thing because very often we come across similar programs where the owner is either unknown or simply someone pretending to be a successful online marketer. In this case, there is no doubt the founder of SAN is a real person and someone who knows how to create a profitable business online. He also has his own website mishawilson.com where you can read more about him.
Take the email below from Paperless Post, for example. I love the header of this email: It provides a clear CTA that includes a sense of urgency. Then, the subheader asks a question that forces recipients to think to themselves, "Wait, when is Mother's Day again? Did I buy Mom a card?" Below this copy, the simple grid design is both easy to scan and quite visually appealing. Each card picture is a CTA in and of itself -- click on any one of them, and you'll be taken to a purchase page.