Don't work for any of these online businesses at all! They are all crap and only make money on your back!
They are ILLEGAL and obtain work permits illegally via another illegal Chinese agency in China!
Beware of the new, mass advertising eprogram by a shady group that uses no real names. This group is managed by a Chinese male from the UK (Darwin) who insists teachers teach 5 people or more online at one time, for the low rate of $12 per hour. This group is dishonest, and has such a bad reputation that not one person uses their real name. This is a nasty group to deal with. Use caution.