I read on another thread that Cooley used factors like the square footage of their library to come up with their rankings. I thought it was a bit of sarcasm. It wasn't. Some of the factors they consider (not sure how it's all weighted):

Total Volumes in Library

Total Titles in Library

Total Serial Subscriptions

Total of Professional Librarians

Library Hours per Week with Professional Staff

Total Library Hours per Week

Library Seating Capacity

Number of Networked Computers Available for Use by Students

Library Total Square Footage

I'm disappointed in Cooley's lack of inventiveness. If they considered the number of janitors employed in library clean up, or the total surface area of desk-top space available to use for study... or SOMETHING, I'm sure they could have placed themselves above Harvard and the like.