Cambridge EFL.org
UCLES EFL offers a range of qualifications for teachers of English to speakers of other languages. These are available at centres in over 40 countries.

Canadian Institute of English
Advanced TESOL Methodology Certification Program

ESL Cyber Chateau
Links to distance MA programs and links to certificates.

English International
Distance learning tefl training and more!

Open Learning International
study online for the TEFL certificate.

SIT TESOL Certificate
SIT TESOL Certificate Home

TEFL.com
a search for course locations by country.

TESOL Distance Learning programs
links from TESOL.org for certificate and degree distance learning programs.