Is a software or Web site questioning several directories and engines in a simultaneous way and by synthesizing the answers. There exists in the world a multitude of search engines and directories. The idea of the métamoteurs is to create an intermediary which takes into account a request, then simultaneously diffuses it near these sites, recovers the answers, the analysis, sorts the page-results and provides the synthesis of information thus "captured". A click of mouse is thus enough to carry out a simultaneous research on several tools of research, in a transparent way. Thus were born a great number of métamoteurs, directly available on the Web (Kartoo, Ixquick, Savvy Search, Metasearch...) or as application softwares (Copernic, Strategic Finder, bulldozers Eye...).