Google has admitted to making gains from ‘illegal’ advertisements run by AdWords, its automated advertising system, which included illegal advertisements from fake UK Passports, to cannabis and fake ID cards.  Google said it has a set of policies enforced through humans and machines that could regularize which ads appear on their page, and it would keep any money made from companies advertising illegal services and remove these ads.  Obviously, as the BCC research revealed, the enforcement seems to be ineffective.

Source:  CBR Media and Search