The present invention relates to an electronic advertising system. More specifically, the present invention provides a computer based matching system that is significantly more convenient for the advertiser. In the present invention, when a person places a personal ad on the system, either via a telephone...http://www.google.com.hk/patents/US5996006?utm_source=gb-gplus-share專利 US5996006 - Internet-audiotext electronic advertising system with enhanced matching and notification
