The Palm Tree Garden
The Palm Tree Garden is an online Gnostic resource of particular note, especially its forum, one of the very few Gnostic forums on the net (and one of even fewer that relates to Gnosticism and not, as Father Jordan+ would call it, Gnosis-ism). There's also a large list of Gnostic Blogs (the Logosphere) there which may be of use, but if you want some community or a place to start a discussion or ask a question, the forum is the place to go.
"And God said: Go ye now (swiftly) to the Palm Tree Garden!"
- Book of Made-Up Godliness 1:37