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Stands for the Montana Public Interest Research Group-

On the University of Montana campus; it is a student-led Student Directed non-profit, non-partisan group that works on consumer and environmental issues that are important to students.
Wow, my textbooks are cheaper, how did that happen?
Oh, MontPIRG ran a really sweet campaign so now publishing companies can't bundle our books with CDs- awesome right?
by Team Sanity December 08, 2010
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