Advertising and marketing services, namely, promoting the goods and services of others; Computerized on-line ordering featuring general consumer merchandise; Computerized on-line ordering services in the field of musical instruments, gear, equipment and recordings; Computerized on-line retail store services in the field of musical instruments, gear, equipment and recordings; On-line auction services; On-line auction services featuring musical instruments, gear, equipment and recordings; On-line trading services in which seller posts products to be auctioned and bidding is done via the Internet; On-line trading services in which users post requests for products and negotiate transactions via the Internet; Operating on-line marketplaces featuring musical instruments, gear, equipment and recordings; Operating on-line marketplaces for sellers and buyers of goods and/or services; Promoting and marketing the goods and services of others by providing hyperlinks to seller sites and products in an online marketplace; Providing a website featuring an online marketplace for exchanging goods and services with other users; Provision of an on-line marketplace for buyers and sellers of goods and services; Provision of an on-line marketplace for buyers and sellers of musical instruments, gear, equipment and recordings; Providing on-line auction services