the present invention provides a method and system for registering and enhancing a traditional paper - based classified ad . the ad is placed by an advertiser and received by a server system of a website . the server system receives ad information such as for - sale item description , accepted payment methods , and advertiser &# 39 ; s contact phone number etc . the server system registers the ad , and assigns the ad a unique identifier . the server system then creates web addresses for the ad with a direct combination of the website &# 39 ; s domain name and the ad identifier or the phone number . the server system provides the advertiser the web addresses for inclusion into a paper - based ad or for telling ad inquirers via phone . the server system then allows a reader of the paper - based ad to access the ad with the web addresses , and displays detailed ad information to the reader . the server system may also concurrently serve other advertisers for ad registering as well as other ad readers for ad detail viewing .