http://www.gaiaonline.com/guilds/viewtopic.php?t=20084097&page=1in terms of out there stuff,
there's also the bhagavad gita and autobiography of a yogi by yogananda, the ra material, the mu material by a certain colonel; there's the immortal series by dewey; the flower of life by melchisedek, and the wave by jadczyk. All of these materials have severe biases and are full of non true things, but they are also full of many true things you will have a hard time finding elsewhere.
as far as 'stuff you are pretty safe with' in terms of truthiness, I recommend the Gilchrist series on sacred geometry. Here's lesson 1:
http://www.youtube.com/watch?v=sJ9OlPsndVs