I was recently asked to become a part-time online Tutor at the well established Search Engine College. I have now started in that role and am really enjoying it!
I currently tutor about half a day per week, mostly grading student assignments, which I do on top of my regular work writing and editing copy and doing SEO and websites for clients.
Search Engine College is a respected international company that offers short self-study and certification courses in Search Engine Optimisation and related disciplines.