Ad serving, namely, placing advertisements on websites for others using specialized computer software; On-line promotion of computer networks and websites; Promoting the goods and services of others by providing a website featuring coupons, rebates, price-comparison information, product reviews, links to the retail websites of others, and discount information; Promoting the goods and services of others by providing a website featuring products and services; Promoting the goods and services of others by providing an interactive website where users can increase the current value of an online discount being offered by purchasing the goods and services associated with that discount in the form of an online coupon, voucher or gift card; Promoting the goods and services of others by listing on a shopping network; Providing a searchable on-line advertising website and guide featuring the goods and services of other vendors via the Internet; Providing a searchable online advertising website and informational guide featuring the goods and services of other vendors via the internet in the field of shopping and advertising; Providing a searchable website featuring the goods and services of other vendors; Providing a website at which customers can manage account information related to telecommunications products and services; Providing a website for connecting sellers with buyers; Providing a website where users can post ratings, reviews and recommendations on restaurants, food and wine for commercial purposes; Providing an Internet website portal featuring links to music-related merchandise for retail purposes; Providing an Internet website portal featuring promotion and advertising for home service providers and product manufacturers