Virtual Learning Environments are not widely used in UK schools, according to the latest OFSTED survey. The survey covered over 40 different institutions and found that no institution was using it comprehensively.
In most places surveyed by Ofsted, the use of such VLEs was "not widespread" and where it was in place it was often the result of the enthusiasm of individual teachers.
It has been our experience too. Teacher enthusiasts have made good use of our Moodle but have not managed to inspire others in their department to do the same.