providing a website on a global computer network by which third parties can offer goods and services; operating an electronic marketplace for buyers and sellers of good and/or services on a global computer network; dissemination of advertising for others via a global computer network; providing a directory of third party websites to facilitate business transactions; electronic commerce services, namely providing information to third parties about products and services in the field of building materials and supplies; on-line buyers guide service providing information in the field of building materials and supplies