Services in the field of network marketing, namely, customer acquisition and customer care by mail order advertising; marketing (sales research); online advertising in a computer network; presentation of firms and of goods on the Internet and other media; sales promotion for third parties; rental of advertising space in the Internet; brokerage of commercial transactions for third parties, also in the framework of e-commerce; arranging contracts for third parties on the buying and selling of goods; arranging contracts for third parties on the performance of services; presentation of goods and services; advertising on the Internet for others; compiling of goods for third parties for presentation and marketing purposes; excluding services provided in connection with elevators, escalators and moving walks