I love Facebook, because there are things you can do there that will help you to make money very quickly. One of these things is the feature that allows you to create your own group, based on a specific niche topic. I have several Facebook groups, based on the different niches I am working in or reasearching. The group allows you to test out your ideas before you spend any time creating a product and marketing it to your list.
When you set up your group, invite your Facebook friends to get it started. Then start a few discussion topics so that visitors will have something to discuss while they are there. You can also tell them about your own or affiliate products that would be of interest to them.
At least once a week you will want to message your group about an upcoming teleseminar you are giving, a new blog post or article you have written, and to share other pertinent information on your niche. Develop a relationship with your group members and they will want to know more about what you have to offer them.