Use of social networks in business organizations. In this paper I will define the concept of social networks and give historical overview of the development of social networks. Also I will give examples of social networks. Creating user accounts on certain social networks provides faster, more efficient and more open communication between the user and the company. Furthermore, it is important do understand the cycle of feedback on social networks because it is the basic of social business. What loop social feedback truly represents is a way to publish only on the Internet and social technologies that connect people around the business or business activities. The engagement is critical to the effective use of social technologies and the creation of social business. Recruitment has been extended to include not only the collaborative activities that occur between their users, but also activities that connect them deal with their clients and those that connect employees inside job. Marketing via social networks consists of attempting to use social network to convince consumers that ones company, product and/or service payment. Social networks are used as a marketing communication tool that helps businesses to be more accessible to those who are interested in their products and make them visible to other users who do know their product.