Electronic commerce services, namely, operating on-line marketplaces for trading in and selling of goods via a global computer network; operating an on-line marketplace for sellers of general merchandise and general consumer goods, including mobile devices and accessories; exchange services, namely, bartering mobile devices and accessories, general merchandise and general consumer goods of others; providing a website featuring an online marketplace for buying, selling and exchanging goods and services with other users; advertising services, namely, providing advertising in the nature of on-line and electronic classified directories; database management services; providing a searchable database in the field of business information available via a global computer network; providing an on-line commercial information directory; on-line auction services; electronic auction services via the internet; providing a website featuring evaluative feedback and product ratings of consumer services of others in the fields of mobile communications devices and services, namely, rating sellers' goods and services, the value and prices of sellers' goods and services, buyers' and sellers' performance, delivery and overall experience in connection with the provision of transactions for the purchase of goods and services