Library statistics from the Association of Research Libraries (ARL) for your number crunching pleasure:
ARL Salary Survey: what academic librarians are earning.
ARL Statistics: what academic libraries are spending (among other things).
Other fascinating library statistics also available at the Library Science research guide.
The 2011 Almanac issue of The Chronicle of Higher Education has just been published. You'll find the latest data on enrollments, tuition, compensation, research, and much more—all in one convenient, 90-page special issue of The Chronicle.
As we deepen our holdings to support Drexel's Masters of Science in Higher Education, new gems continue to come to my attention like the following reports from the Cooperative Institutional Research Program at UCLA's HERI. The following are printed copies, but get in touch if you need access to the electronic versions of these reports.