A two-level Internet search service system. Within the platform of the two-level Internet search service system, Web site builders or Webmasters will have better control on correctly presenting indexes of their contents; Web users will have better control to clarify what they are looking for, can give...http://www.google.fr/patents/US20010039563?utm_source=gb-gplus-shareBrevet US20010039563 - Two-level internet search service system
