Demonstration of goods; advertising; online advertising on a computer network; presentation of goods on communication media, for retail purposes; business management assistance; commercial administration of the licensing of the goods and services of others; sales promotion for others; procurement services for others [purchasing goods and services for other businesses]; marketing; provision of an on-line marketplace for buyers and sellers of goods and services; personnel recruitment; invoicing; search engine optimization for sales promotion; web indexing for commercial or advertising purposes; accounting; rental of vending machines; sponsorship search; retail or wholesale services for pharmaceutical preparations.