1. The wisdom of crowds: Why the many are smarter than the few and how collective wisdom shapes business, economies, societies, and nations;Surowiecki,2004
2. Wiser: Getting beyond groupthink to make groups smarter;Sunstein,2015
3. IBM Watson. Available at: http://www.ibm.com/smarterplanet/us/en/ibmwatson/implement-watson.html. Accessed March 2, 2015.