Throughout the history and especially during 20th century companies were trying to reach and influence customers. Firstly, they have done it with different strategies from word of mouth recommendation. Later with billboards, coupons, proclamation, radio, newspapers, TV and last but not least with the internet. Today in 21st century, we are living in the age of information and digitalisation thereby social media have taken a major role in the communication with customers, building the brands and in the company's marketing. Thus, influence of social media is very important and significant. World population is becoming every year younger and younger, market is changing, and customers are looking for something more than a regular marketing. Furthermore, customers are looking for added value of the brand in order to trust the brand. Little by little, we are coming to the Coca-Cola Company and its symbol- timeless Coca-Cola Classic. When we hear the word Coca-Cola in our thoughts we interpret many associations. Some of the associations are that Coca-Cola is world recognised brand, the most famous drink, classic drink, product with family and holidays spirit and a brand with recognised campaigns and marketing. These associations are giving us hints that we are dealing with the world leader in the domain of non-alcoholic beverages. Moreover, it is one of the top 5 most popular world brands. Coca-Cola today is recognised by its creative campaigns, ideas, support for environment and innovations. In addition, one of the reasons for that is effective usage of social media and online marketing in general. From the beginnings, Coca-Cola was the symbol of marketing usage and the influence on customers and their trust. In a nutshell, in this paper, we will observe how Coca-Cola developed through the history. Moreover, how it became the synonym for successful marketing, how the company is using social media and how digital age influenced the company.