Today's companies are under considerable strain. Several events or developments such as the global economic crises or the ongoing globalization process contribute to this situation. Meanwhile, however, companies have realized that the concept of virtual organizations represents an ecient measure to counter the current challenges. More and more companies make use of this concept supported by technologies like collaboration platforms. However, the application of such collaboration platforms brings along some changes for organizations in doing their business. For instance, interaction between people, who could not get in touch before,is thereby fostered in particular. Employees of dierent organizations, even across countries boundaries, can set up new relationships due to the deployment of collaboration platforms. This paper analyses the impact of collaboration platforms and their eects on the daily business of organizations.