Kolowich, S. (2010) Buying local, online Inside Higher Education, July 23
This article looks at whether institutions should focus primarily on local markets for online students, or should seek to recruit from outside their normal catchment area.
Note that unlike the Columbia University study cited below, the Kolowich article assumes (correctly in my view) that the main market for fully online courses are lifelong learners/working adults, not high school leavers.
Reference
Smith Jaggars, S. and Bailey, T. (2010) Effectiveness of Fully Online Courses for College Students: Response to a Department of Education Meta-Analysis New York: Community College Research Center, Teachers College, Columbia University.