This diploma thesis focuses on the current social networks and their possible use in enterprise resource planning. The thesis is divided into several chapters where the first chapters explains the concept of social networks, their origin, history and development. Described are the principles of their operation and the advantages and disadvantages of using. The next chapter deals with the problem of enterprise resource planning, particularly their development and current trends, where you can certainly include the social CRM, which is currently very pronounced and which is in the area of business information systems a trend. After this theoretical part is followed by the practical part, which sets out the main objectives of the work, the ass...