Take a look at feature list here: http://research.microsoft.com/en-us/projects/mslr/feature.aspx http://research.microsoft.com/en-us/projects/mslr/feature.as...

Take a look at feature list here: http://research.microsoft.com/en-us/projects/mslr/feature.aspx http://research.microsoft.com/en-us/projects/mslr/feature.as... Combing features 130, 131, 135 and 136, I think it is understandable what Google engineers did can give those fake links a boost in the search results. In a way, they cheated the algorithm.