marketing, advertising and promotion services; market research; promoting the goods and services of others via computer and communication networks; facilitating the exchange and sale of services and products of third parties via computer and communication networks; providing online facilities for connecting sellers with buyers; providing online facilities featuring information for consumers in the field of various products and services; business networking; on-line retail store services featuring consumer goods of others; advertising and promoting the goods and services of others via a global computer network; promoting the goods and services of others by providing a website featuring coupons, offers, rebates, reward cards, consumer reviews, links to the retail websites of others; providing commercial assistance in business management to advertisers in creating, managing, and organizing online advertising and online product listings