Since its launch in 2004, Facebook has taken over the world of social networking. Every time you post on your wall, you are marketing yourself, your likes and dislikes, and your activities to those you have marked as friends. Now that we can communicate instantly with enormous groups of people instantly, we need to be aware of the benefits of using Facebook as a marketing tool for our products and services.  However, when using it as a way to keep in touch with friends, please be sure all your settings are marked "private" so that your information is not visible to the general public.