Affiliate marketing is also called "performance marketing", in reference to how sales employees are typically being compensated. Such employees are typically paid a commission for each sale they close, and sometimes are paid performance incentives for exceeding objectives. Affiliates are not employed by the advertiser whose products or services they promote, but the compensation models applied to affiliate marketing are very similar to the ones used for people in the advertisers' internal sales department.
So many webmasters overlook this critical component of a successful site. However, it is one that is easily corrected. A complete course in copywriting is outside the scope of this article, but to point you in the right direction, I would suggest that you start with "Tested Advertising Methods" by John Caples, followed by "Web Copy That Sells" by Maria Veloso.
If you are an affiliate looking to monetize your online presence with affiliate marketing, this section of the course will help you with affiliate program suggestions, which include Amazon affiliate program, eBay affiliate program, etc. For each program, you will see highlights regarding the perks they provide (such as cookie life, commission percent, etc.).
#2. Site Build It - Site Build It is my second choice for learning how to create an online business. The training is very good and you get one website with hosting included. There is no free option, which is one of the reasons that it is not my first choice. I started here back in 2007 and the education that I received was very valuable and helped me to achieve a great level of success.