deoxy.org - the world psychedelic community. Physics, psychology, spirituality, evolution, culture, nature.
Tantra at vitalcoaching.com - Intro to Tantra and Tantric sex. So much energy can be saved by reusing and accumulating sexual energy rather than regularly releasing it (and to a large degree wasting it).
buildfreedom.com - Supreme informational technology to enhance every aspect of life. Discover and address common collective delusional thinking.
stevenharris.com - Unified theory of psychology and the nervous system, quite intriguing.
humanetrics.com - Jung personality typing via the Myers-Briggs indicator test.
Here are a couple good resources for free in-depth descriptions and relations of their 16 types:
Socionics - In depth Wiki of Socionics socionics.com - New-school descriptions of the types and type-relation charts. purdue.edu - Long multi-subject analysis. Change the end of the URL to your desired type.
I reccomend the top four over all other books I've encountered, in the following order: