Marketers have always known that the best recommendations come from a friend. This, in many ways, is the wholly grail of marketing. When a customer has a good experience with a product or service they likely recommend to a friend or review. On Facebook, the average action is shared with the average number of friends, which is 130 people. This is the elusive goal marketers have been searching for, for a long time; making the customers the marketers. (Fisher, 2015)
via Social Media Marketing: 3 Important Things to Consider! | sb653’s blog.