09/25/2008 05:12 am ET | Updated May 25, 2011

Green Business: Saving Money Vs. Making Money

When University of Minnesota graduate Osman Rashid and Iowa State University graduate Aayush Phumbhra decided to start a business, their objective was simply to save college students money. Their company,, based in Santa Clara, Calif., enables college students nationwide to rent used textbooks in order to save money on course materials.

As the business grew, Rashid and Phumbhra realized that they could save more than students' cash. They could help the environment, as well. "We saw that we had this big opportunity to create a reuse model for college textbooks," says Rashid, CEO of "Textbooks don't change every semester. They change maybe once every three years, allowing students to reuse a book."

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