Some new entrants to the textbook market offer students the choice of very inexpensive e-texts or low cost print versions of the same. These publishers' low cost models mean that they don't send publisher's reps to your office, so you need to investigate via publisher web sites.
This searches the sites listed in on this page.
You'll need to skip ads at the beginning (powered by free Google Custom search).
The following textbook publishers employ business models that aim to keep costs low and give students a choice of options. Some texts by alternative publishers have won awards--see box at lower right for award winners.
Although the quality of open & alternative textbooks can vary; some are excellent and have won awards.
Note that in some cases an earlier edition won the award, but links were updated to a newer edition of the title.