DIY elearning
Teaching is a bit like selling, and you can be your own small school. Get a blog going for one class, back it up with a few TeacherTubes and see what happens. Feed the blog with a useful link for each week for a year and you have Web links for next year.
Seth Goldin has advice for small businesses, he is saying get a blog and add a few other localised services. If I had to start BODMAS all over again, I would be using a blog backed up with TeacherTube videos. I would not be renting server space and hacking perl and php!