1. TripLingo (www.triplingo.com)
  2. iTranslate (www.itranslate.com)
  3. Cambly (www.cambly.com)
  4. CourseFinders (www.coursefinders.com)
  5. English Hunt (www.englishuntusa.com)
  6. Duolingo (www.duolingo.com)
  7. NiceTalk (http://tutor.nicetalk.com)
  8. One Hour Translation (www.onehourtranslation.com)
  9. Palfish (ipalfish.com)
  10. Google Translate (https://translate.google.com)
  11. Tandem (www.tandem.net)
  12. Freelancer (www.freelancer.com)
  13. ProZ (www.proz.com)
  14. QKids (https://teacher.qkids.net)
  15. TESOL (Teaching English to Speakers of Other Language; tesol.org)
  16. TEFL (Teaching English as a Foreign Language; www.tefl.org)
  17. SayABC (https://t.sayabc.com)
  18. UnBabel (www.unbabel.com)
  19. Translate (www.translate.com/translators)
  20. VipKid (https://t.vipkid.com.cn)

 

References:

Wikipedia.com

www.lonelyplanet.com

 

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