Arranging, conducting and organizing of exhibitions for commercial and/or business purposes; advertising, marketing and promotion services; marketing services in the nature of rental and procurement of advertising space and exhibition space for others, production, presentation and dissemination of advertising matter; marketing services in connection with conferences, exhibitions, seminars, meetings and displays in the nature of promotional services; the bringing together for the benefit of others of a variety of goods enabling customers to conveniently view and purchase those goods at conferences, exhibitions, seminars, meetings and displays