Read the manuals too. Follow the online articles. Keep up.
Grayson, I think, touches on the core permaculture conundrum in the first of these as I know 'permaculturalists' from other countries who do not fill his criteria for what constitutes Permaculture.
For that matter, his definition only affirms my own preferences to not identify as a permie.
I've drawn a lot of inspiration from British Permaculture over the years (which appears different from Permaculture here -- more 'scientific') but as systems go, I guess my only template today gotta have Vetiver in it.
We all have our shibboleths, I guess.
Russ raises some interesting issues and his commentaries are well worth reading.