Are there any bookkeeping courses online?

There are courses for everything online! So, yes, there are bookkeeping courses online. There are also books on the subject, and web forums. A bookkeeping course would be cheaper than a typical college or university course, and shorter in duration. What you need to do is to be very careful in choosing the course provider you would consider for your online course - you need to check if the course provider is approved to provide those programs and that their courses are accepted in your state.