Wikipedia: Hippocrates - The writings and works of the father of medicine. - http://en.wikipedia.org/wiki/Hippocrates
Internet Encyclopedia of Philosophy: Hippocrates - Article by Michael Boylan on this key figure in ancient medicine and later writers within the Hippocratic tradition. Includes brief biographical information. - http://www.utm.edu/research/iep/h/hippocra.htm
The Hippocratic Wound Healer - Explains the art of treating open wounds from the fifth century to the second century B.C. in ancient Greece. Lists the medical observations and procedures that were being developed during this era. - http://www.themedicaldirectory.org/essays/hippocratic.shtml
Hippocrates - Works - Early writings by the ancient physician, which is translated by Francis Adams. Part of the University of Adelaide Library Electronic Texts Collection - http://etext.library.adelaide.edu.au/h/h7w/