In the transition from the postindustrial society to the information society the ideal type of the rational legal bureaucracy, itself an artefact of the industrial age, begins to lose its heuristic value. The concept of bureaucracy does not help us to understand how and why modern organizations are structured and governed as they are. Information technology has enabled organizations to redesign (transform) themselves. We analyze some important classical writers on organization and question ourselves what the role of information and communication is in their theories. Then we introduce the ICT's and internet. Next we present modern writers on organizations, who have theories of organizational transformation caused by the use of new ICT's and internet. Then we introduce three case studies and analyze what we recognize empirically, using the theories of the modern writers. In our analysis we find that a new structure is evolving, using certain characteristics of information technology. We end with the conclusion that a new ideal type is needed, that helps us understand the new structure that emerges: horizontal, networked organizations that manage work processes instead of functional activities, using a shared information infrastructure.