Business to business direct marketing services; On-line retail store services featuring advertising services; Systemization of information into computer databases; Advertising, including on-line advertising on a computer network; Leasing of office equipment; On-line retail department store services; Provision of an online marketplace for buyers and sellers of goods and services; Barter exchange services, namely, providing commercial barter and trade exchange of products and services via a global computer information network; On-line retail store services featuring a wide variety of consumer goods of others; Providing marketing information via a website; Operating an on-line shopping site in the field of advertising; 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; Provision of an on-line marketplace for buyers and sellers of goods and services; Computerized on-line retail store services in the field of advertising