I am currently recruiting for someone with strong Thai language skills who would be able to research and find good authentic materials in Thai (articles, etc), do an academic analysis on the article, and working with a mentor be able to create the types of lessons at the websites above to teach language students. We rely on native speakers to make these lessons as accurate as possible.
Up front I do have to tell you, getting started will take a bit of an investment of your time, and we do pay a flat rate for a Lesson to be finished, regardless of how long it actually takes you. However, we find the time we pay is on average what is correct for development. Some will take more hours, some less, but the number of hours we pay stays the same for the first two Lessons (25 hours each for your first two and $30.26 an hour; your third goes up to 34 hours at $30.26 an hour).
The biggest push we have is time. Any lesson you agree to MUST be completed before August. Working on your own time, we find most developers can finish between 1 and 3 a month if they focus. It is a collaborative effort.
If you have any other questions, please let me know. Thanks for your time, and I hope to hear from you soon!
Dan