Advertising, including promotion relating to the sale of articles and services for third parties by the transmission of advertising material and the dissemination of advertising messages on computer networks; Cooperative advertising and marketing services by way of solicitation, customer service and providing marketing information via websites on a global computer network; Dissemination of advertising, scheduling and managing of training courses and programs for others via a global computer network; Promoting the goods and services of others via a global computer network; Providing a web site which features advertisements for the goods and services of others on a global computer network; Providing information about commercial business and commercial information via the global computer network; Providing information about the goods and services of others via the global computer network; On-line advertising on computer communication networks; Providing an on-line computer database in the field of locating products, describing products, rating products, pricing products and comparing prices of products