I was going to fire away with one of my warnings about scams, but you should check out ICALpete page about accreditation, because unlike my somewhat milder TESOL Scam Warning
, he gets straight to the quick. Nevertheless, there are two opinions and warnings for you, and beware particularly of organisations that claim to be the largest worldwide, or that use the word international
in their name. Closer examination of some institutes will reveal also that some are just one, which makes itself look big by publishing dozens of worldwide web sites for fictitious branches, and as Pete says, some may even be operating out of a bedroom.
Thailand appears to be the epicentre of TESOL course scams - check out latest reports on this Thai TESOL forum.