The document discusses the concept of Tourism 2.0 as the business model for tourism in the network society. Tourism 2.0 refers to the tourism industry moving to the internet as a common platform, where members can collectively build and improve the system through their participation and contributions. The key aspects are harnessing the network effects of many individuals and businesses working together online to improve the productivity and competitiveness of tourism destinations and enterprises. Some challenges discussed are ensuring all destinations and businesses can participate equally in this new digital model and developing personalized recommendation systems based on collective intelligence.