Content of a first type, such as web pages, are identified in response to a query. One or more correlated entities are identified based on the content of the first type. Content of a second type, such as advertisements, are identified based on the one or more of the correlated entities....http://www.google.fr/patents/US20100114699?utm_source=gb-gplus-shareBrevet US20100114699 - CONTENT IDENTIFICATION EXPANSION
Numéro de demande: 12/686,625 Numéro de publication: US 2010/0114699 A1 Date de dépôt: 13 janv. 2010 Brevet délivré: US8171011 ( Date de délivrance 1 mai 2012)