The South Korean Labor Law can be viewed in English in a slightly annotated form, thanks to Rodney Pantony of Samwon International and Doug's Ugly Fish (cool site Doug!).
Doug's Ugly Fish Offers a lot of good information about working in Korea from a teacher's point of view. With information on what to pack, and advise on contracts, etc., this page is especially valuable to people who are still considering coming to Korea.
The US Embassy in Seoul has an informative page with realistic information on most aspects of teaching English in Korea. Although not of much help to you directly, the Embassy can provide contact information for lawyers and others who can help you with legal matters while in Korea.
Taxation
Tax Information is available from the archives of Pusan Web.
