On-line advertising and marketing services; On-line advertising on a computer network; On-line advertising on computer communication networks; On-line advertising on computer networks; On-line auction bidding for others; On-line auction services; On-line auctioneering; On-line business networking services; On-line business research service that allows the user to analyze opinion trends contained in documents on the Internet; On-line ordering services in the field of restaurant take-out and delivery; On-line retail department store services; On-line retail gift shops; On-line retail store services featuring a wide variety of consumer goods of others; Computerized on-line ordering featuring general consumer merchandise; Operating on-line marketplaces for sellers and buyers of goods and/or services; Providing on-line auction services; Providing on-line price comparisons of travel and lodging services; Providing on-line trade directory services; Providing a web site that features an on-line market for users to list offered or wanted personal and business assets and skills for hire, rent, sale or auction transacted on the basis of predefined performance and closing terms and conditions; Providing an on-line searchable database featuring used books being offered for sale and buyer/seller contact information; Provision of an on-line marketplace for buyers and sellers of goods and services; Publicity and sales promotion relating to goods and services available on-line; Retail and on-line grocery store services featuring home delivery service