The advent of the Internet has strongly influenced modern software systems. Existing intranet solutions are being gradually replaced with www services available everywhere and at any time. The availability of the wide area network has resulted in unprecedented opportunities of remote and distributed cooperation of large groups of people and organizations. Originally expert systems have been used for internal purposes in different organizations. The purpose of this work is to summarize the results of the project aiming to revise the functionality and architecture of traditional expert systems in terms of modern trends in web-based systems. Both knowledge representation, development of the knowledge base and interface solutions have been reconsidered. The proposed solutions are based on the pilot implementation of the internet expert system.