Business efficiency expert services; Business investigations; Commercial and industrial management assistance; Layout services for advertising purposes; Marketing research; Marketing services; Mediation and conclusion of commercial transactions for others; Organization of trade fairs for commercial or advertising purposes; Pay per click advertising; Production of advertising films; Professional business consultancy; Promoting the goods and services of others by providing a website featuring coupons, rebates, price-comparison information, product reviews, links to the retail websites of others, and discount information; Providing business information via a web site; Provision of an on-line marketplace for buyers and sellers of goods and services; Public opinion polling; Rental of advertising time on communication media; Scriptwriting for advertising purposes; Writing of publicity texts; On-line advertising on a computer network; On-line retail store services featuring a wide variety of consumer goods of others