Amazon is having a Back to School giveaway and they giving away a Kindle Fire HD. Contest Ends January 31, 2013 so get your entry in now. US only (except NY residents).
If you already have a Kindle (or Kindle app) please check out the daily deals for Kindle.
If you are a student you qualify to receive Amazon Prime Benefits FREE for 6 months when you sign up for Amazon Student. Amazon Student gives you FREE 2-day shipping. After the free 6 month trial it is just $39 a year to continue receiving benefits (for up to 4 years). Amazon Prime Membership is normally $79 a year. You can cancel your membership at any time. Some of the other benefits - you'll receive access to thousands of Prime instant videos, and a Kindle book to borrow for free each month from the Kindle Owners' Lending Library.