Silhak
Links
Religion and Philosophy: Shilhak
http://www.hawaii.edu/korea/bibliography/religion_philosophy-shilhak.htm
Bibliography of academic writings on this movement.
The Characteristics of the Practical Learning in the Later Chosun Dynasty
http://web2.kwangju.ac.kr/~jrhee/info/paper/pa1.html
Abstract of a paper on the Silhak school, delineating five distinctive aspects of this school's thought.