9 PROVIDING AN ON-LINE INFORMATION EXCHANGE FEATURING PROPRIETARY SOFTWARE FOR USE IN COMMUNICATING PRODUCT DESCRIPTIONS AND VARYING PRICING INFORMATION FOR SUCH PRODUCTS AMONG BUYERS, SELLERS AND MIDDLEMEN BASED ON THEIR INPUT; SOFTWARE AND DOWNLOADABLE SOFTWARE FOR USE IN COMMUNICATING PRODUCT DESCRIPTIONS AND VARYING PRICING INFORMATION FOR SUCH PRODUCTS AMONG BUYERS, SELLERS AND MIDDLEMEN BASED ON THEIR INPUT