Some business owners opt to start an affiliate marketing campaign as part of their overall marketing strategy. In most cases the affiliate marketing campaign is only a small portion of the overall marketing strategy but there are some business owners who opt to rely exclusively on this type of marketing. The main purpose of doing this is to save money while still achieving valuable advertising. However, once a business becomes more successful they should consider being more proactive and combining affiliate marketing with other types of Internet marketing such as placing banner ads and orchestrating an email marketing campaign. This article will take a look at what affiliate marketing is and will provide insight into why this is popular and how it can be used effectively.