On-line trading services in which users post requests for products and negotiate transactions via the Internet; Provision of an on-line marketplace for buyers and sellers of goods and services; Operation and supervision of business facilities for secure, in-person business transactions between buyers and sellers of goods and/or services; Advice on the analysis of consumer buying habits and needs provided with the help of sensory, quality and quantity-related data; Arranging of buying and selling contracts for third parties; Arranging of trading transactions and commercial contracts