Teaching online is by no means a simple task, and requires both a lot of time and patience. In theory anyone who voluntarily engages him/herself in higher education is by definition motivated, but unfortunately that`s not always the case. One may of course just shrug ones shoulders and say that it`s not the lecturers problem if the student doesn’t want to make an effort to learn. Personally I prefer to try and reach as many of my online students as possible.
Here are some web resources with tips on how to do online teaching, that just might save the day both for you and your students: