Advertising, namely rental of advertising space on the Internet; dissemination of advertisements via online communication networks; marketing; organization of events, exhibitions, fairs and shows for commercial promotional and advertising purposes; advertising sponsorship; promotion of third-party goods and services via global computer networks; advertising in virtual spaces and areas; classified ad services; digital advertising services; provision of online marketplaces for buyers and sellers of goods and services; business management, namely updating and maintenance of data in computer databases; data search in third-party computer files; business management, namely management of files and records relating to patient health status; collection, systematization, compilation and analysis of personal and commercial data and information stored in computer databases; providing business information directory services via a global computer network; information, advisory and consultancy services relating to business management and commercial administration provided online or via the Internet; systematization of data in computer databases; providing business information about business contacts; transcription of communications; commercial administration, namely compilation of data and information in computer databases; electronic data processing; personnel selection; commercial administration services for processing of sales carried out on a global computer network; provision of personal and commercial information from online databases.;