Invoicing; Advertising and business services, namely, securing airtime on all forms of media communications stations, systems, networks, and services for the purpose of promoting the goods and services of others; Advertising and marketing; Advertising and publicity services, namely, promoting the goods, services, brand identity and commercial information and news of third parties through print, audio, video, digital and on-line medium; Advertising and publicity services, namely, promoting the goods, services, brand identity and commercial information and news of third parties through print medium and on-line medium; Business management assistance; Demonstration of goods; Import-export agency services; Issuing and updating of advertising texts; Market reports and studies; On-line advertising on a computer network; On-line promotion of computer networks and websites; On-line retail consignment stores featuring clothing, toys and household appliances; On-line trading services in which users post requests for products and negotiate transactions via the Internet; Providing an on-line commercial information directory on the internet; Providing commercial information and advice for consumers in the choice of products and services; Provision of a web site featuring commercial information on shopping; Rental of advertising space; Sales promotion for others; Sponsorship search