Perhaps it's worth quoting Larry Page and Sergey Brin, in the original paper on the Google search engine:
> "The goals of the advertising business model do not always correspond to providing quality search to users. ...we expect that advertising funded search engines will be inherently biased towards the advertisers and away from the needs of the consumers. "
> "The goals of the advertising business model do not always correspond to providing quality search to users. ...we expect that advertising funded search engines will be inherently biased towards the advertisers and away from the needs of the consumers. "
(http://infolab.stanford.edu/~backrub/google.html)
At the time they thought this was a bad thing...