There are many sites about Samael Aun Weor gnosis. Here is a short list :
Gnostic Teachings - Excellent gnostic content. Site in english. A must.
Vopus.org - Multilingual site. Lots of gnostic materials.
Samael.org - Multilingual site dedicated to Samael Aun Weor and his work. Great
GnosisCentral.com - Books and Audiobooks in english
BibliotecaGnostica.net - Extensive collection of Samaelian resources, multilingual
SamaelGnosis.net - Books, Audiobooks, resources, in spanish
Other sites to support your gnostic studies:
Internet Sacred Text Archive - large archive of online books about religion, mythology, folklore and the esoteric
Buddhanet.net - Buddhist Studies - Glossary
Theoi.com - Greek Mythology - all you need to explore the Greek Mythology
Bible Wheel - Hebrew Bible verse by verse. Great tool for Bible study
Web Gallery of Art - a virtual museum and searchable database of European fine arts from 11th to 19th centuries. Beautiful !
Digital Images - ANTHROPOLOGY, ARCHEOLOGY AND ART
HebrewAlphabet Quizzer - download it and learn the Hebrew letters. A FREEWARE program by Robert C. Graf, copyright 2005