1. ORNL’s Jaguar Claws its Way to Number One. The Top 500 Supercomputer Sites Report 2009http://www.top500.org/files/newsletter112009_tabloid_v3.pdf
2. Top 500 Supercomputer Sites. TOP500 List - June 2005 (1-100)http://www.top500.org/list/2005/06/100
3. Energy Limits to the Computational Power of the Human Brain;Merkle;Foresight Update,1989
4. Folding@home passes the 5 petaflop mark. Online text from the ‘Folding@home’ blog, 18 February 2009http://folding.typepad.com/news/2009/02/foldinghome-passes-the-5-petaflop-mark.html