The Human Touch That May Loosen Google’s Grip By Randall Stross ...Engines like Hakia, Accoona and Powerset are trying to grab market share by writing a more sophisticated algorithm. A growing number of entrepreneurs are placing their bets, however, on a hybrid system that puts humans back into the search equation. They are grouped under a newly coined rubric, “social search,” and it is becoming a crowded field. ... Posted at: http://www.nytimes.com/2007/06/24/business/yourmoney/24digi.html?ex=1184299200&en=60fc2f043160f2a6&ei=5070