On that I would say, yes, that's what we hear often—that they just want to see what site you visit—but from our own work on what you can find out by tracking, the problem is that you can aggregate all the sites that I have visited and then draw up a profile. In some cases you could find my name and my address from public sources, and so on, and you could draw up a profile of me as a citizen or consumer that can be accurate or it can be extremely inaccurate.
As the Internet becomes more sophisticated.... There's an article by the American scholar Jeffrey Rosen that's very good on this. It was published about two weeks ago.
The danger of tracking and the issue of discrimination on the Internet is that because you have visited these sites, the ad server can decide that you fall into a certain category. We can't each have a personally individualized category for the moment, but we'll say “middle-aged lady, likes golf, likes to drive station wagons”. In the American example, because of different political sites that were visited, it could be “votes this way, thinks this way”, and so on. It can be accurate, but it can be inaccurate.
The fact that it will determine the information you get, the ads you get, and sometimes, I believe, the rankings in search engines—I'm not sure about that—means that your experience of the Internet and the world of knowledge that the Internet represents will be limited. It will be based on what may be a true or a false or a partly true profile that algorithms are determining for you.
That's some of the concern: that you fall into artificial categories and therefore only see the information that is deemed to fit in with the artificial category into which you have fallen.