Do you make unit readings available online?

I would like to do so, but apparently my university has a policy against doing so (or at least, my faculty does).  The argument is that they have to order printed versions in to the bookshop, and the faculty must pay for any un-purchased copies.  To me, this seems like a pathetic reason for making things difficult for your students.  As a student, if I have a kindle or a laptop, and I want my unit readings available in that format, and it really doesn't seem an unreasonable request.