Computer programming including providing and updating a computer database allowing access for multiple users via the Internet to various resources, data, communications, documents, personal and professional information, service providers, products and publications relating to the sale, operation and maintenance of industrial machines with rotating parts; provision of on-line access via the Internet to on-line directories and searchable databases of resources, data, communications, documents, personal and professional information, service providers, products and publications relating to the sale, operation and maintenance of industrial machines with rotating parts