Thank you Cam.
Good idea. The only problem is that a tracking code would need to be added to the tracked materials and I am trying to track materials and clicks over which I have no control -not just my Lectora materials. I got to thinking that as most stuff would be online analysing browser histories would be helpful also. I know… I know… I should have thought of it before but was fixated on a more general model of interaction. The browser history analysis would enable tracking of the path followed across the Internet (including local served materials) but would not track actual clicks on a page. This is a pity but, for my purposes, this would be more important than what happens on a page. Perhaps one could combine both approaches somehow.
Thanks again so much for your help.