This is two paragraphs of a long article. He mentions flash cookies which you can get rid of. Last month, the British advertising giant WPP boasted that it had just created the world’s largest database of individuals’ online behaviour: profiles of 500 million people, covering, it says, almost 100 per cent of the people online in the countries in which it operates, including the UK, the US, Australia and eight others. The firm said it was pooling data from many of the world’s major websites and networks of online advertisers and adding it to information purchased from traditional market-research firms…