Affiliate marketing is not hard. You do not need any experience in business or whatever. It would help to know a little bit about the internet. But as you go along you can learn and succeed far beyond your expectations.
In the affiliate business you simply promote products that you did not have to make. There are tons of products out there that get promoted and recommended by other affiliates to their visitors of their sites or campaigns.
As a result they get paid many times over because of how many people they refer to the merchants site.
If you think you can set up a few sites targeted towards doing this then you seriously can do good.
