On-Line retail services in the nature of facilitating the sales of consumer goods, durable goods, and services of others via the Internet; On-line trading services in which seller posts items to be sold at a set price, or alternatively is offered in an auction-style format where bidding is done electronically, and providing evaluative feedback and ratings of sellers' goods and services, the value and prices of sellers' goods, buyers' and sellers' performance, delivery and overall trading experience in connection therewith