Auction services; On-line trading services in which users post requests for products and negotiate transactions via the Internet; On-line business directories featuring searchable databases relating to a variety of information and data on available goods and services; Promoting the goods and services of others; Advertising services; On-line auction services; The bringing together, for the benefit of others, of a variety of goods and services, enabling customers to conveniently view and purchase those goods and services from an Internet web site particularly specializing in the marketing of the sale of goods and services of others