Affiliate marketing is one of the most popular – and most effective ways to make money online. For many bloggers, this is in fact one of their main sources of income – with some making tens of thousands of dollars every month just from affiliate sales.
Another way to display your affiliate links to a large pool of people is through advertising. You don’t have to have a blog to promote an affiliate product, but you can place it on someone else’s blog.

If you don’t have a good strategy and experience, you are more likely to lose money on your ads.
When you promote a product you also promote the person or the company who is behind the product so try to choose wisely. You don’t want your visitors to go and buy a product following your advice then come back unhappy. Do you think that this visitor will come back to your site and take your advice again? Most likely no; this can hurt your credibility in the long run. Usually, websites/company that offer good customer service will have better customer satisfaction so try to stick with promoting their products.