It will sound like the fairy tale if I will tell you that 1 among the 7 people on earth is using Facebook. Among 7.4 billion people on earth 1.8 billion people are on Facebook. So, what is the best about this? I would say the best would be the shares, likes, photos, ads, and much more. It has everything that can make you famous. So, businesses and marketers cannot afford to have a distance from this giant. And why would they if there are this much of the user base. There will be always the option to get your potential customers regardless what you sell and how you sell.