Demand for teachers:
Very High

Main TEFL regions:
Seoul & Pusan

Main types of teaching:
Private English Language Institutes (Hagwons): General English, Business English
University Academic Departments: General English, English for Specific Purposes (ESP)
Government & Private Research Institutes: General English, ESP
Corporate in-house Language Programs: General English, Business English
State & Private Kindergartens: English for Younger Learners

Busiest periods:
Year round

Salary:
US$1600-$1800 per month
Pay is commensurate with a teacher's qualifications and experience.

Tax:
10%

Contracts:
6-12 months

Visa requirements:
Work visa required

Requirements:
English speaker
University degree

http://en.wikipedia.org/wiki/Republic_of_Korea