Advertising; presentation of goods on communication media, for retail purposes; online advertising on a computer network; providing commercial information and advice for consumers in the choice of products and services; providing business information via a web site; provision of an on-line marketplace for buyers and sellers of goods and services; sales promotion for others; marketing; personnel recruitment; systemization of information into computer databases; compiling indexes of information for commercial or advertising purposes; search engine optimization for sales promotion; accounting; sponsorship search; rental of vending machines; rental of sales stands; retail services for pharmaceutical, veterinary and sanitary preparations and medical supplies