Data compilation and systematization in a database; incorporation and operating of administrative data banks; computerized file management; data search in computer files for others; document reproduction; updating of advertising material; page layout services for advertising; dissemination of advertising matter; writing advertising texts; publishing of advertising texts; online advertising on a computer network; advertising mailing; rental of advertising space; commercial information agencies; business management assistance; business management and organization consultancy; arranging subscriptions to telecommunication services for others; demonstration of goods; auctioneering; commercial information and advice for consumers; organization of exhibitions for commercial or advertising purposes; presentation of goods on any communication media, for retail purposes; compiling of statistics; marketing studies; marketing research; sponsorship search; public relations; opinion polling; cost price analysis of goods and services; comparative tests and qualitative studies of goods of all kinds provided on the Internet; auctioneering (purchase and sale) via the Internet; commercial consultancy and business consultancy services for companies