Crowd

A crowd is a large and definable group of people considered together.

Crowdsourcing

Crowdsourcing is the act of outsourcing tasks, traditionally performed by an employee or contractor, to an undefined, large group of people or community (a "crowd"), through an open call. It means delegating a task to a large diffuse group, usually without monetary compensation.

The Wisdom of Crowds

An old saying says: "a problem shared is a problem halved". James Surowiecki named for requirements for "wise groups" in his book "The Wisdom of Crowds": diversity of opinion, independence, decentralization and aggregation. Large fish shoals for example should fulfill them: "many eyes" lead to a diversity of opinion about potential threats, the opinion of the "selfish" fishes about a threat is not determined by the opinions of those around them, and they are decentralized by default.

Books

• Patrick R. Laughlin, Group Problem Solving, Princeton University Press, 2011
• James Surowiecki, The Wisdom of Crowds, Doubleday, 2004

Links

• Wikipedia entry for Crowd
• Wikipedia entry for Crowdsourcing
• Wikipedia entry for The Wisdom of Crowds