China: Friends of China
Nonprofit American organization based in Minnesota, USA and mainland China searching for volunteer teachers.
http://friendsofchina.net/

China: Teach English in China
A placement service for those interested in teaching in China which also offers contact with a teacher training program in Beijing.
http://www.cbw.com/teaching/

England: Teach English at Home
Seeking qualified teachers to teach students in the teacher's own home and provide homestay accommodation. Based in Oxford, UK.
http://www.teachenglishathome.co.uk/

ESL Job Find
Connects ESL employers and job seekers worldwide.
http://www.esljobfind.com

ESL Junction
Offering jobs and teaching positions in Asia.
http://www.esljunction.com/

Friends of World Teaching
Offers a listing of schools around the world and placement in long or short term positions, for American and Canadian teachers.
http://www.fowt.com/

Greece: Anglo-Hellenic Teacher Recruitment
Employment opportunities, training and support for teachers in Greece.
http://www.anglo-hellenic.com/

Saxoncourt
English teacher training organisation and ELT recruitment agency.
http://www.saxoncourt.com

Taiwan: Teaching English in Taiwan
Teacher in Taiwan will help others locate schools throughout the country.
http://www.angelfire.com/tx3/teachenglish/

Worldwide: Footprints Recruiting - Teach English Abroad
Offers to provide placement in South Korea, Taiwan, Japan and Brazil, free of charge.
http://www.footprintsrecruiting.com/

Worldwide: The Teacher Recruitment Company
Searchable by job type, location, and salary and includes an online recruitment fair.
http://www.teachers.eu.com/