In the Lane Labs case, the seller had to put specific terms on its site in order to trigger the connection between the product information and specific search terms.

FORBES: FDA Regulates Internet Search

Det Ch Insp Sean Memory, who is leading the search at that site, said officers had received "relatively specific" information from a man held in connection with Miss O'Callaghan's death but that no remains had yet been found.

BBC: Sian O��Callaghan

As with Google, there are few details regarding specific instances of manipulated information, in part because there is no benchmark for the accuracy of either search results or credit ratings.

FORBES: Should Regulators Treat Google Like Standard & Poor's?