I have been working on a compilation of virtually all known Enneagram resources (articles, tests, type profiles, etc) for my own personal reference, because it seems to me that info on Enneagram tends to be scattered and somewhat disorganized. I deliberately excluded links I thought were redundant or otherwise unhelpful, e.g. Enneagram teachings of the life coach variety, or content which required my credit card.
I am willing to add more links by suggestion. The list also includes archived webpages, ebooks, and videos.
Index of Enneagram Resources @ Google Docs
Forum resources:
Enneagram Types:
Enneagram Type 1
Enneagram Type 2 thread
Enneagram Type 3
Enneagram Type 4
Enneagram type 5: all things Five
Enneagram Type 6: Defender
Enneagram type 7: all things Seven
Enneagram Type 8
Enneagram type 9: all things Nine
Enneagram Articles of General Interest:
Enneagram Talk Styles, Essence, Passions and Fixations
Triads & Types
Directional Theory of the Enneagram
Enneagram: Axes of Polarity - Inverse Types
Enneagram: Nine Qualities of the 'Enlightened' Being
Enneagram Type Descriptions:
Type 9 instinct variants
Enneagram type 9w8 description
Enneagram type soul-child descriptions
Experiences with 2w1s
Enneagram type 1 with dominant sexual instinct - SX One
Enneagram Type: 4w3 vs 4w5 wing differences
Tritype Discussion
Instinct Stackings:
Instinct variants - so.sx.sp last descriptions
Instinct Workshop Notes
Collection of Notes on Instincts & Stackings
SP, SX, SO Variant Profiles
Instinctual Stackings Visual Composites (VI)
Differences between Sx/Sp and Sp/Sx
Sx/so
so/sx
sp/sx
sx/sp
so/sp connection
all things sp/so