(66) In order to strengthen the right to "be forgotten" on the Internet, the right to erasure should be expanded by requiring a controller who has made such personal data public to inform controllers who process such personal data to delete any links to such data, copies of such personal data, or replications thereof. In fulfilling this obligation, the controller should take reasonable measures, taking into account available technologies and the means available to it, including available technical means, to inform controllers who process personal data of the data subject's request.