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/
China: Teach in China - The Council on International Educational Exchange offers a placement service, application procedure and information on living conditions, costs, and health and visa requirements. - http://www.councilexchanges.org/work/ticfacts.htm
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/
China: Friends of China - Nonprofit American organization based in Minnesota, USA and mainland China searching for volunteer teachers. - http://friendsofchina.net/
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/