(en) Gross, Doug,"What the Internet is hiding from you", 'CNN', 19 mei 2011. Gearchiveerd op 2 april 2015.Geraadpleegd op 15 augustus 2011.“I had friends Google BP when the oil spill was happening. These are two women who were quite similar in a lot of ways. One got a lot of results about the environmental consequences of what was happening and the spill. The other one just got investment information and nothing about the spill at all.”
(en) "The Filter Bubble", The Atlantic, 10 oktober 2010.Geraadpleegd op 20 april 2011.“Since Dec. 4, 2009, Google has been personalized for everyone. So when I had two friends this spring Google "BP," one of them got a set of links that was about investment opportunities in BP. The other one got information about the oil spill....”
(en) Gross, Doug,"What the Internet is hiding from you", 'CNN', 19 mei 2011. Gearchiveerd op 2 april 2015.Geraadpleegd op 15 augustus 2011.“I had friends Google BP when the oil spill was happening. These are two women who were quite similar in a lot of ways. One got a lot of results about the environmental consequences of what was happening and the spill. The other one just got investment information and nothing about the spill at all.”