| colte.com | The Certificate in On-Line Teaching of English |
| cie.ca | Canadian Institute of English |
| celta.ca | Certificate in English Language Teaching to Children |
| columbia.edu | Columbia University: Certificate in TESOL |
| cactusteachers.com | CactusTeachers |
| macam98.ac.il | English Teacher Trainers |
| nzs.szczecin.pl | Niezależne Zrzeszenie Studentów |
| forgematrix.com | Slang Dictionary for everyday english language |
| caledonianschool.com | The Caledonian School |
| thecertificationhub.com | The Certification Hub - Free IT Certification Study Test Questions |
United States , Virginia , Mclean