In March 2012, Google changed its privacy policies to combine the data of individual users of 60 internet services such as YouTube, Gmail and social network Google+. Users were not provided with an opportunity to "opt out" of this process. Google pools anonymous user data, so that keywords from the pool can be used to automatically generate targeted advertisements (relating to products of third parties) to Google users. The bigger the data pool, the better is Google's ability to sell online advertisements.
CNIL recently stated it will take action against Google after the company failed to sufficiently reply to questions about its handling of user information, and will set up a further inquiry into Google's practices in this area because Google had not addressed the concerns raised by the EU data regulators.
Google takes the position that it has cooperated with the EU data regulators and that its practices do not violate any laws. Stay tuned!