35 Advertising; market research; telemarketing; personnel management consultancy; employment agencies; organization and conducting of trade fairs, exhibitions, and special shows for commercial or advertising purposes, also via the Internet; business management, particularly in respect of organizing and conducting trade fairs, exhibitions, special shows and selling events; presentation of business companies and their products and services, also via the Internet; sales promotion for others; product merchandising; demonstration of products; arranging contacts between commercial partners in trade and industry, also via the Internet; providing and rental of advertising space and advertising material; management consultancy, particularly in respect of organizing and conducting trade fairs, exhibitions, special shows and selling events; compilation and management of information in computer databases; arranging contracts for third parties relating to the rendering of services, particularly of technical advice for exhibitors, institutions, organizers and associations, of traffic services, of services rendered by craftsmen, particularly electrical installation, setting up booths, plumbing, gas and water piping, and cleaning of booths