If you are a music lover, it would be a good idea to promote it over books and even other products. All you need to do is listen to clips of a full album within a short period, say 10 minutes, get a good feel of it without you purchasing it and do a short review. If there is another niche you are passionate about, make sure you get a unique discovery about it. Of course, there are hundreds of thousands of reviews about these products all over the web but you need to make yours more unique to attract people to your site.
Having several affiliates is not a guarantee of making money online. Studies show that a successful affiliate marketing campaign requires you to get the right collaborations that would drive traffic to your site. Whether these associates are big or small sites or even a combination of both, you must create and maintain strong relationships with the affiliates.
Once you have that problem or need nailed, the next step is to validate that idea and make sure you’ve actually got customers who will pay for it. This means building a minimum viable product, getting objective feedback from real customers, incorporating updates, testing the market for demand, and getting pricing feedback to ensure there’s enough of a margin between your costs and what consumers are willing to pay.
Cafe Press: This website allows you to create digital designs that can then be sold on the platform. You'll earn a commission for everything that sells and you'll never have to deal with logistics like printing, warehousing and customer service. If you have some graphic design skills, then this is a great potential source for your web-based income.