don't see why ppl are surprised about this from an ad company. its not a search engine company and never as been, despite having a large search engine...
That's why 'ppl are surprised'. To many, Google's ethos is still 'do no evil', an absurd mantra for a for-profit enterprise whose business model relies on developing ever more effective ways to spy on people's behaviours for the benefit of their advertisers.
What's rapidly