The authors and editors must be getting the message that the screen shot alone presentations are wasted on most of the readers as these blog presentation are satisfactory, if too brief, and can be easily printed or converted to PDF files for printing or future reference.
I may try one of the free programs---or one with an extended trial period just to see how it helps. I've never been a touch typist. Maybe now-----to some degree after some lessons.
Keep Up with TechRepublic