I'm actually a professor, and ...
I've looked into teaching at some online schools. I did some research on them and have spoken to other instructors.
I found that there are huge differences in schools that are exclusively online and existing "brick and mortar" schools that have online programs.
The online universities seems to sell their degrees. Students pay a lot of money, and the instructors are highly motivated to make sure that students make good grades. Instructors are not hired back if the grades of the students are too low!!
The programs offered by traditional colleges and universities seem to offer quality programs and degrees.
Good luck finding a school and a program.