Free GenEd books created by Rice University
SPRINGER PUBLISHING CO
Unlimited Access Health Care eTextbooks for libraries
Free peer-reviewed eTextbooks created by professor consultants
OPEN TEXTBOOK LIBRARY
Free peer-reviewed eTextbooks created by Univ of Minn
The above quotes come from NBC News report "'Required Reading': As Textbook Prices Soar, Students Try to Cope"
"Pushing for Open Textbooks"
Affordable College Textbook Act