Facebook marketing is using Facebook (profile, ads, groups, pages,…) to earn money, directly, or indirectly. This can be by selling products or services straight from Facebook, it can be by directing traffic to your website or blog from Facebook, or it can be by affiliate marketing.
Facebook marketing is more about keeping as good of a existence as possible on Facebook. Posting relevant information and keeping the engagement of existing and new fans up. This will finally lead to a bigger fanbase that is actually INTERESTED in both your products and your brand. On top of that I would also recommend Facebook ads and promotions.
There are about 1.6 billion active users Facebook. It means that you have the possibility to reach out to an endless amount of people and potential costumers. If you do it right that is,there are a lot of companies competing for the attention, so it is necessary to promote your store in an effective way to the RIGHT audience.