ON-LINE TRADING AND BUYING SERVICES TO FACILITATE THE SALE OF PHARMACEUTICAL AND MEDICAL GOODS AND SERVICES BY OTHERS IN WHICH SELLERS POST ITEMS TO BE AUCTIONED AND BIDDING IS DONE ELECTRONICALLY VIA A COMPUTER NETWORK; PROVIDING EVALUATIVE FEEDBACK AND RATINGS OF SELLERS' GOODS AND SERVICES, THE VALUE AND PRICES OF SELLERS' GOODS AND SERVICES, BUYERS AND SELLERS PERFORMANCE, DELIVERY AND OVERALL TRADING EXPERIENCE IN CONNECTION THEREWITH, ALL BY MEANS OF A GLOBAL COMPUTER NETWORK, BY MAIL, ...