Advertising services, namely, promoting and marketing the goods and services of others in the field of on-line and electronic classified directories via print and electronic media; Barter exchange services, namely, providing commercial barter and trade exchange of products and services via a global computer information network; Computerized on-line ordering featuring general consumer merchandise; Database management; On-line auction services; Providing a searchable on-line advertising website and guide featuring the goods and services of other vendors via the Internet; Providing a web site featuring the ratings, reviews and recommendations on products and services for commercial purposes posted by users; Providing an on-line commercial information directory on the internet