Facilitating information exchange over the Internet, namely, facilitating the exchange of needed information for financial compensation via the Internet; online trading, namely, online trading services in which seller posts products to be auctioned and bidding is done via the Internet; online purchasing services, namely, purchasing services in which seller posts products to be sold and buying is done via the Internet; providing customer product information via the Internet, namely, advice, recommendations, prices and information about customer services and products in connection with purchases made via the Internet; providing customer product information via the Internet, namely, providing customer reviews via the Internet; business services, namely providing computer databases regarding the purchase and sale of products and services by consumers via the Internet; contests and incentive programs for promoting the sale of products and services of others; promoting the sale of goods and services of others by distributing information in digital format; providing a website at which users can offer goods for sale and buy goods offered by others; electronic retailing services via computer featuring digital and non-digital products in a wide variety of fields; database management; providing consumer information regarding sales, reviews and comments of consumer products