Impact of making learning materials available openly
Published today, an interesting article in IRRODL looking at the impact of OpenCourseWare (or more broadly Open Educational Resources) involvement on some of the OCW institutions and on learners.
Broadly speaking, OCW publication has helped learners decide on and prepare for courses prior to enrolment, and has had some positive impacts on recruitment and outcomes for institutions.
http://www.irrodl.org/index.php/irrodl/article/view/1238/2336