Business intermediary and advisory services in the field of selling products and rendering services; Operating on-line marketplaces for sellers of goods and/or services; Promoting the goods and services of others by means of distributing advertising on the Internet; Promoting the goods and services of others by means of operating an on-line shopping mall with links to the retail web sites of others; Promoting the goods and services of others by providing a community-driven web site featuring user-submitted content in the nature of coupons, rebates, price-comparison information, product reviews, links to the retail web sites of others, and discount information; Promoting the goods and services of others by providing a website featuring coupons, rebates, price-comparison information, product reviews, links to the retail websites of others, and discount information; Providing a web site featuring consumer information on various publications and providing hyperlinks to on-line retailers that sell the publications; Providing information pertaining to procurement, buying, selling and tendering information and opportunities relating to goods, services, and construction via computer, computer networks, telephone, the internet or electronic mail