Advertising and advertisement services; Providing a searchable online advertising guide featuring the goods and services of online vendors; providing an online marketplace for sellers and buyers of goods and services; Online trading services, namely, operating online marketplaces for sellers and buyers of goods and services; Online trading services in which sellers post products or services to be offered for sale, and purchasing or bidding is done via the Internet in order to facilitate the sale of goods and services by others via a computer network; Providing a website featuring an online marketplace for exchanging goods and services with other users, namely, an online marketplace website on which buyer and sellers post products to be offered for trade or sale, and negotiating, trading, and selling via the Internet and computer network; Providing exchange services, namely, business advisory services for facilitating the person-to-person, business-to-business, and business-to-consumer exchange of products and services via the internet and global computer networks; Providing a website featuring an online marketplace for advertising and promotion of goods and services of others for sale and for exchange over the Internet; Providing a searchable online advertising website featuring the goods and services of online traders and sellers; Providing an online service which matches traders with one another based on traders' interests and preferences; Providing evaluative feedback and ratings of sellers' goods and services, the value and prices of sellers' goods and services, buyers' and sellers' performance, delivery, and overall trading experience in connection therewith; providing a searchable online evaluation database featuring business information for buyers and sellers