Method and apparatus for allowing a remote site to interact with an intermediate database to facilitate access to the remote site a method for delivering information from a source on a global communication network to a second and a user location thereon. A unique code is associated with an advertising...http://www.google.com.hk/patents/US6985962?utm_source=gb-gplus-share專利 US6985962 - Method and apparatus for allowing a remote site to interact with an intermediate database to facilitate access to the remote site