Great Leaders of Our People: Don Yitzchak Abrabanel  
   Biographical article with an emphasis on the Judaic aspects of this thinker's career.
   http://www.ou.org/about/judaism/rabbis/abrabanel.htm

Catholic Encyclopedia: Don Isaac Abrabanel  
   Short review of his life and writings, by Romain Butin.
   http://www.newadvent.org/cathen/01050b.htm

Biography: Isaac Abrabanel  
   Concise summary of his life, from the Jewish Theological Seminary.
   http://learn.jtsa.edu/topics/diduknow/sources/abrabanel.shtml

Don Isaac Abravanel  
   Detailed information on the careers of this Jewish scholar and his son, from Maurice Abravanel.
   http://www.maurice-abravanel.com/isaack_abrabanel_more.html

The Alhambra Decree and Abrabanel's Answer  
   English-language text of the infamous 1492 edict expelling the Jews from Spain, and Isaac Abrabanel's reply.
   http://home.earthlink.net/~bnahman/Alhambra_Decree_Abrabanels_Answer.htm

Isaac ben Judah Abravanel: Statesman, Financier, and Biblical Commentator  
   Biographical article from JewishGates.com.
   http://www.jewishgates.com/file.asp?File_ID=204