What I think is important is to realise that online learners don’t just experience things in the same way, as someone who is dyslexic I find it a very difficult exercise. A site that isn’t dyslexic friendly makes it almost impossible for me to continue with that course. Too much information just on the first page can be challenging and this is an area that I sense hasn’t actually been investigated enough. It is important to consider the learning space online as it is for the physical world and classroom.
I agree about taster courses. They can really give you a flavour of a subject and also help you work out your own skill level in relation to other people. But yes it can be hard deciding which ones to do. There is so much choice. I wanted to learn a language but found it really difficult to work out which course to do.