Linda Rening reviews how she has designed and written copy for many online courses over the years and notes that people browse online, scanning paragraphs or if they are interested they will read. She looks at strategies designers have used to try and persuade people to read including the ‘next’button.
She notes that it is important to understand what matters to learners.
The reality I have had to face is this: If you want to write elegant prose, keep a journal. If you want people to learn, stop talking and start creating learning that matters.
Also in case of interest: www.uxmatters.com/mt/archives/2012/05/7-basic-best-practices-for-buttons.php