Choosing a good product to sell from your affiliate sales programs depends on two main things. First, you need to have some degree of knowledge or expertise about that product or, more importantly, you need to be interested in the product's category or topic. And secondly, you need to make sure the product owner's webpage has a high sales conversion rate.
The beauty of affiliate sales programs is that although competition might affect your success to some degree, it is not a liability to have tons and tons of other affiliate marketers promoting the same product. As long as you are able to drive traffic to your affiliate product's website, you will be able to make a lot of money in whatever affiliate sales program you choose.
When first deciding upon a product, your knowledge and enthusiasm for the product are most important. Even if you have absolutely no knowledge whatsoever about an affiliate sales program's product, it just takes a few days of study and research online to learn what you need to know to make money. If you are truly interested in a product category, then you shouldn't have much trouble finding out what you need to know to make money with your affiliate sales program.
Once you've decided upon a particular category of products from which to choose, look at the products that are hot sellers. The affiliate sales program should provide a list of products arranged by category, like Clickbank. Visit the websites of some of the top sellers in the affiliate sales program, and find out if they offer any affiliate bonuses for a lot of converted sales and any other useful stuff like pre-made pictures you can put on your website to advertise with. Also try to determine if they have a good conversion rate, 10% and up is considered pretty high.
Once you can narrow down your affiliate sales program's product selection with these criteria, you will be well on your way to being successful.
