Everyone knows Facebook is the most popular social network and According to eMarketer, a digital marketing analysis firm, Facebook is still the number one social network by a large margin.
Facebook is number one, with its 1.11 billion members , is no surprise. EMarketer believes that just over half, 51 percent, of all internet users visit Facebook at least once a month. The company also stated that worldwide Facebook penetration will only continue to grow higher, reaching 60 percent of internet users by year's end.