Biographies
Pythagoras
http://phoenicia.org/pythagoras.html
Archimedes
http://www.andrews.edu/~calkins/math/biograph/bioarch.htm
http://www.cs.drexel.edu/~crorres/Archimedes/contents.html
Thales of Miletus
http://phoenicia.org/thales.htmlhttp://www.thebigview.com/greeks/thales.html
Eratosthenes of Cyrene
http://wwwgroups.dcs.stand.ac.uk/~history/Biographies/Eratosthenes.html
http://www.biographybase.com/biography/Eratosthenes.html
Aristotle
http://www.iep.utm.edu/a/aristotl.htm
http://www.ucmp.berkeley.edu/history/aristotle.html
Democritus
http://www.iep.utm.edu/d/democrit.htm
http://www.humanistictexts.org/democritus.htm
http://www-groups.dcs.st-nd.ac.uk/~history/Biographies/Democritus.html
Socrates
http://www.humanistictexts.org/socrates.htm
http://www.historyforkids.org/learn/greeks/philosophy/socrates.htm
Hippocrates
http://www.humanistictexts.org/hippocrates.htm
http://www.iep.utm.edu/h/hippocra.htm
Hypatia
http://www.agnesscott.edu/lriddle/women/hypatia.htm
http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Hypatia.html
Plato
http://www.wsu.edu/~dee/GREECE/PLATO.HTM
http://www.iep.utm.edu/p/plato.htm
http://plato-dialogues.org/life.htm
Ptolemy
http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Ptolemy.html
http://en.wikipedia.org/wiki/Ptolemy_I_Soter