Ingram Digital just announced their Survey of 680 e-Book Users and uncovered key drivers behind their recent 400% surge in digital textbook adoption. 47% of those surveyed believe that "cost in relation to print copies" is very important. A similar proportion of respondents identified the convenience of e-books (46%) and interactive features (45%) as also being very important.

According to the press release, Ingram Digital's VitalSource is the digital textbook platform of choice among top academic publishers. By Fall 2008, inventory offered in Ingram Digital's VitalBook format will include hundreds of frontlist titles by McGraw-Hill, Wiley, Elsevier, among others.

But what will cash-strapped students do at the end of the year when they can't sell their textbooks back to the co-op?