"You don't know what data is going in.
MySpace will give users control over what data is given to whom.
"You don't know what data is being collected and how it is used".
Again, because I don't know enough of what data is being mined, I can't really say.
And this raises interesting questions around what data is gathered, how it's analysed and who gets to see it.
Marissa Mayer, the boss of Yahoo, told attendees in Davos it should be clear what data is being disclosed.
So, what data is available to compare working hours and pay across the state and private sector?
She said: "What's murky about some of what is happing today is people don't necessary know what data is being collected and about what is being used".
Pickles added: "It's absolutely right that European regulators focus on ensuring people know what data is being collected and how it is being used.
"We need much more honesty, about what data is being collected and about the inferences that they're going to make about people.
