Chao-Kuei Hunghttp://people.ofset.org/~ckhung/index.en.php is a long time FLOSS advocate in Taiwan.
He has given more than a hundred talks about free software, most of which are addressed to school teachers.
The topics include technical ones such as mathematics and regular expressions,
as well as non-technical ones such as culture and philosophy and of free software.
He is also concerned with privacy and consumer right invasion by large ICT corporations.
He is a member of http://www.ofset.org/ Organization for Free Software in Education and Teaching.