Randy Farmer goes over this concept in detail in Building Web Reputation Systems (http://shop.oreilly.com/product/9780596159801.do http://shop.oreilly.com/produ

Randy Farmer goes over this concept in detail in Building Web Reputation Systems (http://shop.oreilly.com/product/9780596159801.do http://shop.oreilly.com/product/9780596159801.do). Google Tech Talk: http://www.youtube.com/watch?v=Yn7e0J9m6rE http://www.youtube.com/watch?v=Yn7e0J9m6rE See also: "YouTube: Five Stars Dominate Ratings" (http://youtube-global.blogspot.com/2009/09/five-stars-dominate-ratings.html http://youtube-global.blogspot.com/2009/09/five-stars-domina...)