http://www.internationalforum.com/Forums/Leadership%20&%20Music.htm (maybe)
http://stixmusic.com/leadership-development (leadership development program: maybe interesting for the future)
http://www.ted.com/talks/itay_talgam_lead_like_the_great_conductors (from conductors point of view) (no) and
http://www.thestar.com.my/Business/Business-News/2013/03/30/Leadership-lessons-from-an-orchestra-conductor/?style=biz (yes)
http://www.musicedted.info/ChapterandQuartetManagement/Leadership.html (speaks about the leadership styles mentioned by Goleman – interesting!) (yes)
http://www.leadership501.com/leadership-styles/424/ (Goleman and others, from the point of view of orchestras!) (yes)
http://www.stthomas.edu/rimeonline/vol5/davison.htm (maybe less interesting: leadership from the point of view of band rating)
https://www.udemy.com/developing-your-leadership-style/ (what is your leadership style? 60-minute-course, could be interesting later)