The tourism industry more and more intensifies the endeavors to take advantage of the World Wide Web. However, Web-based tourism information systems are required not to offer online brochures only, but rather to provide both, value and service. One system which has recognized this fact is TIScover. TIScover allows the tourist for convenient and powerful access to tourism information and products through the support of different information retrieval philosophies along with an online booking facility. In addition, TIScover employs an Extranet and an Intranet component allowing the decentralized maintenance and customization of the tourism database. With this, a high quality content in terms of comprehensiveness, accurateness and actuality can be achieved and the system can be easily adapted not only for different kinds of tourism information providers, but also for different regions and even different countries. This paper gives a brief overview of TIScover and describes its main functional components.