Actually I have been for a while, but I thought I’d throw the details up here.
My how to ebook on introducing Gregorian Chant in Catholic parishes can be found here – http://cruachanhill.blogspot.com/p/the-gregorian-schola-for-beginners-by.html
A couple of years ago I wrote a series of articles on the subject for the website http://www.unamsanctamcatholicam.com they are available there under the liturgy tab. The ebook is basically an edited consolidation of those articles, with some additional material.
I am considering writing a more extensive guide, of a similar nature, but including technical information (practical details on reading notation, conducting, different approaches to rhythm, and such). The question I have is whether or not there is really a need for such a thing?