Thanks to Lisa Hirsch & Helen Radice, I've just come across Adaptistration, a blog by musician, teacher and orchestra manager Drew McManus in the US. It's part of Artsjournal and concerns the evolution of orchestral management, but using a sharp mind and fine arguments to do so. Well written, to the point and most insightful. Anyone in the music business, or with a serious interest in orchestras for any reason whatsoever, should read it.
Footnote: Drew, like me, is married to a professional violinist. Is there something about the instrument that induces its player's spouse to blog?!?