You have some of the best material and articles I've seen on type.
I feel like I should have spent the last four years on this site, instead of elsewhere.
A little about me... I've been pursuing an objective means to quantify type for the past four years or so, and my journey has taken me through a lot of error-checking and diverse hypothesis.
My approach has been one of using body language -- but not in the loosely defined way people typically implement. The goal was to see if the similarities we see in people and subconsciously use to say things like "yep, that's definitely a Beta" could be quantified and correlated to the actual functions and actual, dynamic expressions (rather than face structure)
As I did this, starting in the MBTI camp, I discovered myself coming to a very similar general alignment with Socionics. And as Socionics seems to have an appreciation for visual identification, I hope I can fit in~
It's a pleasure to meet you