- The Alchemy Virtual Library - Adam Maclean's ultimate site on alchemy with thousands of pages of on-line texts and images."Over 90 megabytes online of information on alchemy in all its facets. Divided into over 1300 sections and providing tens of thousands of pages of text, over 2000 images, over 200 complete alchemical texts, extensive bibliographical material on the printed books and manuscripts, numerous articles, introductory and general reference material on alchemy."
- Ancient Knowledge and Wisdom of the Arcanum - The All is Mind - The Universe is Mental.
- Fibonacci Numbers and the Golden section
- J.R. Ritman Library - Bibliotheca Philosophica Hermetica -
The Bibliotheca Philosophica Hermetica is a private library located in the
heart of Amsterdam. It was founded by Amsterdam businessman Joost R.
Ritman, who decided to make his collections part of the public domain
- The Hermetic Library -
The Hermetic Library is the creation of Al Billings and is his attempt to
find a place to host his creations and those of others that would not
otherwise be available. These creations are, by and large, of a
spiritual focus but not the areas of spirituality that you will
generally see within the mainstream of American culture.
- The Hermetics Resource Site - The best Hermetics resource on the internet. With substantial sections in both English and Turkish.
- The Occult Archive
- Philosophical Research Society