The digital age has changed communication between people. Sending and receiving messages has been simplified and started to be implemented via mobile devices and computers. Business processes have become faster and more efficient. The organization communicates and receives feedback more easily, whether it is about communicating within that organization and deciding on business, or communicating with the organization's customers, business partners, and anyone outside the organization. Both verbal and nonverbal communication have adapted to the new age. It is no longer important to just know how to write a letter or memo well and respect business etiquette. With the introduction of computers and the Internet, it has become very important to know how to write a good e-mail, create a good promotional message or a well-composed post on social networks. Social networks have become part of everyday life where millions of people find entertainment, and organizations are a great communication channel through which they do promotion. Although the first forms of social networks appeared as early as the end of the 20th century, nowadays they have become an unavoidable form of communication and connecting users, both privately and in business. Many large organizations recognized social networks as a trend while they were still in the early stages of development, and the first such social network was Facebook. The analysis of Zagreb Holding shows the four most represented networks in Croatia and the Holding's communication with customers on the same. They communicate the most with users through Facebook, and they have the largest number of users and visitors on this social network. Although they are not active in responding to user comments, some works show that they read the comments carefully and try to meet the wishes and needs of citizens. The numbers showed inactivity on the YouTube channel, but this social network requires a slightly younger audience and interactive content such as interesting videos.