Advertising; advertising agencies; dissemination of advertising matter; rental of advertising space; auctioneering; compilation of information into computer databases; systemization of information into computer databases; data search in computer files for others; commercial information agency; commercial information and advice for consumers; presenting of goods on communication media for retail purposes; business information; business enquiries; business research; marketing research; price comparison services; import-export agencies; marketing research; administration and processing of purchase orders; sales promotion for others; organisation of trade fairs for commercial or advertising purposes; automated and computerized trading of goods and services for others provided over a communications network; online wholesale and retail store services