“Frequently Asked Questions.” Nerdfighters. Web. 29 October 2012.
How To Be a Nerdfighter: A Vlogbrothers FAQ by John and Hank Green. Web. 27 December 2009.
Stawick, Ellen. “Nerdfighter Interview.” Message to Katherine Sergi. 1 November 2012.
Vlogbrother Youtube Channel by John and Hank Green. Web. 2007
How To Be a Nerdfighter: A Vlogbrothers FAQ by John and Hank Green. Web. 27 December 2009.
Stawick, Ellen. “Nerdfighter Interview.” Message to Katherine Sergi. 1 November 2012.
Vlogbrother Youtube Channel by John and Hank Green. Web. 2007