The answer to this question if YES. You can earn extra money and even a full-time income from affiliate marketing. The affiliate industry is growing massively and survey shows that by 2020, revenue generated from affiliate marketing will amount a whooping $6.8 billion by 2020. Affiliate marketing is an integral part of a lot of business strategy which means that the industry is only going to continue to grow.
Affiliate marketing is an ideal way of generating income as you do not need significant capital to get started, you also do not need to render a service or have products for sale to begin as an affiliate. How much money you can make with affiliate marketing becomes a factor of your level of commitment, experience, site traffic etc.