The paper presents a review of literature on application of information and communication technologies, specifically, Web and Agent Technologies in condition monitoring and maintenance of mechanical and electrical systems. In manufacturing and process plants, rarity of experts does not allow condition monitoring to realise its full potential. This led to the application of artificial intelligence and distributed artificial intelligence to condition monitoring. More recently web technology and intelligent agents have emerged as better decision support tools. Reviewed papers show that these technologies have been used in manufacturing and other sectors for integration, remote monitoring and maintenance, diagnosis and prognosis purposes.