erklärt Hoofnagle in First Monday, Volume 14, Number 4 – 6 April 2009:
Google could remedy this situation and give real teeth to its tradeoff talk by enabling individuals to take all of their data in Google’s services and move it to another provider or system. To the extent that users’ data have been collected in an identifiable way — for instance, through Gmail or a personalized search — users should be able to order that their data be deleted [81]. Without a system to revoke trust, users have no meaningful methods to decide that the Google tradeoff is not worth the costs.