Great idea guys!!!  The last thing that I need is more paper around here. The content looks good, there are lots of pictures, and it's a great way to keep publishing costs down. 
I have one suggestion that will make reading it much easier.  Format the thing landscape.  I'm old.  I am hard of seeing.  To make the print large enough easily read, i have to scroll up and down on each page.  If you formatted the thing in landscape, like my monitor is shaped (yours too I imagine) that problem would be solved.  Other serious electronic railroad magazines are published in landscape format.  I do not mean to be snarky, but it seams kinda obvious to me.
Love your trains,
Michael the Crank