The method and system of the present invention provides instant personalized online shopping information and assistance for fast and filtered shopping experience that enables online shoppers to confidently and conveniently shop online, knowing that they are getting the best deal for a product or service....http://www.google.com.tw/patents/US20030225632?utm_source=gb-gplus-share專利 US20030225632 - Method and system for providing personalized online shopping service