Who are the Montessori Madmen? They're a 'ragtag group of advocates from around the world' who are fired up about improving education. As they state on their website, they're 'united by a common zeal to bring the Montessori method to millions more'. In point of fact, they're passionate champions of education committed to a simple mission: to advocate for Montessori education so that one day it's not called Montessori school; it's just called school.
You may be interested to learn that they have a number of projects that you can get involved with. The most recent is called, Fill the Chair, and aspires to set up more classroom observations in local communities. One of the major concerns about Montessori is the lack of transparency, which is coupled to a lack of understanding. It's one of those things that you just have to see to believe, as they say. If your interested, you should visit their website, and follow them on Twitter.