Quote Magic Matt:
I think you misunderstood the question slightly. They're a massive company that have a fantastic product which for the majority of people on the web is the best quality search system around. It delivers the right results all the time, and you don't have to pay for it. They have to collect data and utilise it to be a successful business.
My point is, why would anyone think that they as an individual would be singled out? They're not interested in your data at all, they are interested in collective data. They don't want to know that Joe Bloggs of 12 Long Street looked for Emu Drivers, they want collective data such as "people in London have started searching for Computer Technician" so that it can drive the cost of their adwords product for example.
So I ask again, what would make you think they are in any way interested in your individual data?
They want it to add to their collective data. Some people actually don't want incredibly powerful companies like Google to own their private information. What aspect of that viewpoint do you fail to understand?