ENCYCLOPEDIA OF PLATO
http://n1.xtek.gr/ime/lyceum/index.php?p=home&lang=2
ACADEMIA.EDU
Pythagoras Foundation is an information center about the philosophy of Pythagoras, Pythagoreans and the other presocratic philosophers.
https://stichting-pythagoras.academia.edu/Nico.Bader
PRESOCRATICS
Vishwa P. Adluri; Bibliographies of Presocratics; Parmenides, Empedocles and Heraclitus and new Presocratics. Join a philosophical dialogue.
WISDOM OF HYPATIA
The Wisdom of Hypatia Ancient Spiritual Practices for a More Meaningful Life from Bruce J. MacLennan, PhD
http://wisdomofhypatia.com/home.html
EMPEDOCLES
Empedocle – Empédocle – Empedokles – Empedoklés – Empédocles – Bibliographie présentée par Tomáš Vítek, avec la collaboration de J.-C. Picot
https://sites.google.com/site/empedoclesacragas/
INSTITUTO NEO-PITAGÓRICO
Rua Professor Dario Vellozo, 460 Vila Izabel 80320-260 – Curitiba – Pr Brazil