Normally people don't know how the market will receive online earning products, and no one can really predict that, because the internet is so dynamic and the market is fluctuating due to the recession.
Also, there are probably many affiliate programs and/or online earning methods out there in the internet that do not convert well at all and are a waste of time and others that probably work well.
Thus, how to select from these online marketing money earnings and then promote them?
The first solution of the best products to select and promote are make money online products. These products sell very good and people are always looking for ways to make money online. the suggestion is to start there and then start selling other products.
The second solution is to sort product by popularity by default. You can select to search by popularity. For instance, with the affiliate program clickbank, you can search and find the top 10 most popular products in each of the nine categories. This is another way to start with.
After picking up the product, the next step is to simply track everything from the beginning, in that way when you finish a new product, you can gauge it's success compared to the earlier ones. The take home lesson of internet marketing is that you have to take responsibility for your own personal story. You have your uniques talents and skills, and your own way of getting it out there, so really only you can do the best job of assessing what markets you will be most successful in.
