via a Moodle Group on Linked in today:
http://mfeldstein.com/state-us-higher-education-lms-market-2014-edition/
http://mfeldstein.com/new-lms-market-data-edutechnica-one-year-update/
Alan Christie's comment: http://christie.com.au/?p=28
http://edutechnica.com/2014/09/23/lms-data-the-first-year-update/
. . .
-Derek