http://truepublica.org.uk/global/google-able-effect-regime-change-appears/
Epstein asserts his research findings that confirms “Google’s search algorithm can easily shift the voting preferences of undecided voters by 20 percent or more—up to 80 percent in some demographic groups—with virtually no one knowing they are being manipulated.” As Epstein points out, with electoral margins usually quite thin, Google has the ability to change to outcome of elections in one quarter of elections worldwide.