Step #1: Select a Market and Products to Sell

The first step is to select a market for your Facebook account and find products to sell. The ClickBank MarketPlace has thousands of products to promote and many of them pay 50% to 75% commission.
In the screenshot below, you can see the categories on the left. Each category is a market. Click a category to reveal sub-categories and then look for products to sell. Higher gravity (Grav) means that a lot of affiliates are making money on that product, but it also indicates a lot of competition. Also note the highlighted link to the affiliate tools page

If you click the Health & Fitness category, you‟ll see multiple niche markets within that market. We call these “sub-niches.”

So you could create a Facebook account for the Health & Fitness market and then create Fan Pages for each sub-niche.