Advertising and directory services, namely, promoting the services of others by providing a web page featuring links to the websites of others; Advertising and promotional services; Consultation services, namely, creative and strategic consultation regarding development and production of marketing campaigns for others; On-line retail store services featuring additive manufacturing, 3D printing software and control system, 3D printing preprocessor software, 3D scanning software, CAD and CAM software, Computer Graphics Software, Artificial intelligence in manufacturing software, 3D printing, E-commerce service website, 3D printing model download service; Online advertising on a computer network; Promoting and showcasing the goods of others in the field of additive manufacturing, 3D printing software and control system, 3D printing preprocessor software, 3D scanning software, CAD and CAM software, Computer Graphics Software, Artificial intelligence in manufacturing software, 3D printing, E-commerce service website, 3D printing model download service by means of an on-line shopping site with links to the retail advertisements of others; Promoting, advertising and marketing of the brands, products, services and online websites of individuals, businesses and nonprofit organizations; Providing a searchable on-line advertising website and guide featuring the goods and services of other vendors via the Internet; Provision of an online marketplace for buyers and sellers of goods and services; Publicity and sales promotion relating to goods and services available on-line