Ok so Amazon is basically the gateway for online shopping, they have just created a new offering called Amazon student.
This is a good place to find cheap text books for your courses.
They also have a referral credit system where you can earn $10 for each social media referral, so you maybe able to score your books by spreading the word.
Ok the link is Join Amazon Student FREE Two-Day Shipping for College Students
Enjoy and tell us how it went.