Advice and information about customer services and product management and prices on internet sites in connection with purchases made over the internet; Cooperative advertising and marketing services by way of solicitation, customer service and providing marketing information via websites on a global computer network; Marketing services, namely providing informational web pages designed to generate sales traffic via hyperlinks to other web sites; Promoting the goods and services of others by providing a web site at which users can link to products; Promoting the goods and services of others by providing hypertext links to the web sites of others; Promotion, advertising and marketing of on-line websites; Providing a web site whereby buyers of goods or services locate and receive quotations from multiple competitive sources and sellers of goods or services identify and bid on multiple new sales opportunities; Providing a web site which features advertisements for the goods and services of others on a global computer network; Providing on-line directory information services also featuring hyperlinks to other web sites