Operating an Internet based e-commerce marketplace allowing users to offer, sell and buy a variety of consumer goods and buyers to buy those goods immediately or by participating in group buying; on-line trading services, namely, operating an on-line marketplace for sellers and buyers of goods and services in which sellers post items to be sold at a set price for buyers to purchase immediately or to purchase by participating in group buying; providing a website featuring consumer information in the nature of evaluative feedback and ratings of sellers' goods and services, buyers' and sellers' performance, delivery and overall trading experience in connection therewith