Gnosticism

Gnostic Radio
Broadcasting free lectures and podcasts about Gnosis: meditation, alchemy, tantra, esoteric psychology, and the practical science required to free the soul from suffering.
http://www.gnosticradio.org/

Gnostic Schools
Portal for Gnostic Schools in English. Provides information for schools in the tradition of Samael Aun Weor, including events, articles and contact details.
http://www.gnosticschool.org/

Gnostic Store
A non-profit resource for books and other items useful in the Gnostic tradition of Samael Aun Weor.
http://www.gnosticstore.org

Gnostic Teachings
Huge site features free online courses, audio lectures, books, articles, lectures, videos, forums, and gnostic glossary.
http://www.gnosticteachings.org

Gnostic Videos
Streaming video related to Gnosis.
http://www.gnosticvideos.org

Internet Encyclopedia of Philosophy - Gnosticism
An article describing Gnosticism from a philosophical point of view.
http://www.iep.utm.edu/g/gnostic.htm

Live365 - Gnostic Radio
Broadcasting Gnostic Lectures on internet radio.
http://www.live365.com/stations/gnosticradio?play

Metareligion: Gnosticism
A resource for many views of Gnosticism. Includes articles and links.
http://www.meta-religion.com/Esoterism/Gnosticism/gnosticism.htm

Wikipedia - Gnosticism
Article on the nature, history, structure and terms used in Gnosticism.
http://en.wikipedia.org/wiki/Gnosticism

Wikipedia - Monad
The Gnostic concept of the Monad.
http://en.wikipedia.org/wiki/Monad_%28Gnosticism%29