Sites for the Study of Gnosticism

Primary Works Concerning Gnosticism
Nag Hammadi Library/Gnostic Society
The Gnostic Society Library

Anti-Gnostic Works
Irenaeus, Adversus Haereses
Polemical Works against the Gnostics
Tertullian, The Prescription against Heretics
Tertullian, Against the Valentinians

Contemporary Gnostic Works
The Holy Gnostic Rosary
Sophia's Tale Retold
Benediction, Ecclesia Gnostica

Additional Sites for the Study of Modern Varieties of Gnosticism
The Gnosis Site

General Sites for the Study of Gnosticism
WWW Resources for Gnosticism and Nag Hammadi
The Gnosis Archive
The Gnostic Society Virtual Library
The Gospel of Thomas Home Page
"Thunder, Perfect Mind" translated by George W. MacRae (NHLE)
Ecclesia Gnostica Home Page

More Gnostic writings and groups
Nag Hammadi and Berlin Gnostic Library, index of online texts  
Text of "The Six Enneads"
Short biographies of Christian Gnostics
The Gnostic Society Library
Text of The Apocryphon of John
The Apocalypse of Adam
"Sampler" Gnostic introductory texts