A traffic control system selectively interfaces members of plural groups, as buyer groups and vendor groups, for video communication through a dial-up telephone system, for analyzing and compiling data, scheduling appointments, implementing conferences, consummating sales and the like. The traffick-control...http://www.google.co.uk/patents/US20020001372?utm_source=gb-gplus-sharePatent US20020001372 - METHOD FOR BUYER-SELLER-ON-LINE COMMERCE