Advertising services, namely promoting properties for sale by owner via the Internet; Business services, namely providing computer databases regarding the purchase and sale of a wide variety of products and services of others; Creation of marketing tools designed to increase a client company's knowledge of customer needs, and its competitors' products and services, pricing, advertising strategy and sales strategy; Electronic commerce services, namely providing information about products via telecommunication networks for advertising and sales purposes; Independent sales representatives in the field of commercial web estate; Providing a web site at which users can offer goods for sale and buy goods offered by others; Providing a web site where users can post ratings, reviews and recommendations on products and services; Providing a web site which features advertisements for the goods and services of others on a global computer network; Providing advertising, marketing and promotional services, namely development of advertising campaigns for large-scale web and interactive television products; Providing listings of businesses for sale; Providing space at a web site for the advertisement of the goods and services of others; Sales promotion services