Something I've noticed: there are more articles for INTJs out there than for any other type. And apparently, they’re all written by INTJ authors.
This means one of two things.
Either, that a handful of super-productive bloggers are churning out an ungodly amount of articles about their type. Or, there are way too many INTJs – far more than the statistics reckon there are, which is around 2 percent of the population.