One of the traditional ways of promoting affiliate products is PPC. It consists of bidding on relevant keywords. To know which keywords are related to the products you are promoting, you will need to work on your AdWords skills and perform proper keyword research. The key is to identify the keywords that inspire conversions.
One mistake beginning affiliates often make is falling for the many scammy deals out there promising giant email lists or tons of traffic. Often times those offers don’t deliver at all, or they deliver hits via bots or disinterested freelancers who get paid peanuts to ping your site for twenty seconds before moving on to the next one. These aren’t good deals. Any traffic you get isn’t going to be good traffic.

That’s because the competition is pretty high, and you have to invest a lot of time in research, creating, adding, and updating the content. Besides that, you should also promote the website (backlinks, social media ads), do a lot of testing to optimize the traffic sources, find new products to promote, etc.
Referral marketing is a fancy way of saying referral program; it is a deliberate, structured way for companies to get other people to make referrals to their business. It’s also sometimes called word-of-mouth marketing because it rewards existing customers for getting new customers to purchase a product or service from a company they may otherwise have not done business with.