stronger meaning has its roots in the terms crowd and out-sourcing, and refers to the solution of a problem by referring it to a number of people, without respect to their qualifications. Surowiecki (2005) in his book The Wisdom of Crowds cites examples of how a group of people may converge on the solution to a problem that an individual, even an expert, may be unable to solve. The principle has been widely exploited through the mechanism of the Web