The web kameleon system is a flexible platform for building and managing corporate portals which include the most important information for the company, its employees and partners. Intranet is an internal company network, whose purpose is to make the information exchange and flow process more efficient and make it accessible to the employees. Intranet systems use the same media and tools, which are used in the Internet, that is why web kameleon will prove useful as a platform for building and managing the internal intranet service. The extranet communication consists in sharing the company resources with the external customers, which usually include co-operating companies, partners or customers. The resources are shared with the use of Internet technologies, hence, also in that case, the web kameleon system will come in handy as a platform for information creation and management. The possibility to integrate the system with extra data sources, databases or applications, will additionally provide the extranet users with a variety of online services, such as submitting orders, file sharing, access to common databases, etc. The application of extranet systems in companies which have a large group of regular customers considerably reduces the costs of communication and information exchange, contributing to strengthening corporate bonds.