Fermat, Pierre de - Biography of the mathematician from Eric Weisstein's World of Scientific Biography. - http://scienceworld.wolfram.com/biography/Fermat.html
Pierre de Fermat - Excerpt from "A Short Account of the History of Mathematics" (4th edition, 1908) by W. W. Rouse Ball. - http://www.maths.tcd.ie/pub/HistMath/People/Fermat/RouseBall/RB_Fermat.html
Fermat's Last Theorem - Explains the theorem and traces its history. From the MacTutor History of Mathematics Archive. - http://www.gap-system.org/~history/HistTopics/Fermat's_last_theorem.html