I've been in Bangkok and Udon Thani for about a year and a half. I love Thailand and highly recommend it. To teach English here you need a tefl certificate and it's better if you have a college degree. But the jobs are very plentiful. I have a lot of information about courses to take for tefl and places to apply to work if you need help.
You should change one of your tags to Thailand so others can find you :) Followed you.