Crowdsourcing : The folly of Crowds

The wisdom of the crowd?

In most cases the crowd are not as clever or well advised as you think they are, in truth, we may be relying on the folly of the crowd.

http://what-is-crowdsourcing.com/the-folly-of-crowds/

Information sharing interferes with 'wisdom of crowds': study

http://www.physorg.com/news/2011-05-wisdom-crowds.html

Social influences kill the wisdom of the crowd

http://arstechnica.com/science/news/2011/05/following-the-crowd-undermines-its-wisdom.ars