Where can I find information on Gnosticism outside of Wikipedia?

I'm doing research on Gnosticism, mostly to satisfy my sense of curiosity and I'm looking for sites that can provide information on its beliefs and history. Does anyone know any good websites or books on the subject?

And please don't recommend Wikipedia. I've already been there. -_-

Thanks! ^_^

Public library.

There is a Gnostic Bible which compiles all of the Gnostic Gospels. You could probably get a copy of it at a good library, bookstore, or on Amazon.

Have you tried the external links at the BOTTOM of the Wikipedia article?