8. The method of claim 7 , wherein the advising comprises sending the given one of the entities an e-mail alert.
7. A method of alerting an entity to use of an image, the method comprising the steps of: obtaining access to a first database having a plurality of first database records, each of the first database records comprising at least: an identification of a corresponding one of a plurality of entities; and a plurality of features of a plurality of images associated with the entities; obtaining access to a second database having a plurality of second database records, each of the second database records comprising at least: an identification of a corresponding one of a plurality of generalized web locations; and a plurality of features of a plurality of images associated with the generalized web locations, the plurality of features being extracted from images obtained by crawling the generalized web locations; for at least one of the first database records, comparing corresponding ones of the features of a corresponding one of the images associated with a corresponding one of the entities to the plurality of features in the second database records to determine an identified entity of the plurality of entities; obtaining, from the identified entity, via a mechanism for expressing privacy preferences, at least one privacy preference comprising a visual query preference of the identified entity, wherein the mechanism provides for the identified entity of the comparing to express the privacy preferences to suppress a requester of the comparing from the receiving a visual query result that is associated with the identified entity, for the requester not being logged into an online account, or the requester not being in a social group of the identified entity, and further, the mechanism allows the individual subject of the query to express a preference for receiving an alert indicative of a use of the facial image of the identified entity in the second database records, and an online delivery address and frequency preference for the comparing and for receiving the alert; and advising the identified entity, corresponding to the at least one of the first database records, if the comparing yields a probable match.