A Piece of America is a teacher recruiting service run by Ms. Deb Buchholtz-Hiemstra. My experience with her has been good. APA can place you at a hagwon, and right quick, too.
"An Unofficial Guide" compiled by the U.S. Embassy in Seoul is a pretty thorough overview of the types of EFL jobs available in Korea and the possible dangers associated with them.
My teaching schedule, February 2000
Have you got a working visa? I thought I did!
Anyone interested in working as an English instructor in Korea is welcome to contact me.