Amazon is offering a select accounts 6-Month Prime Subscription for Students for FREE for a limited time. I believe this is for Amazon accounts that has not previously had a student Prime membership.

They are also offering half price Prime Subscription for Students aged 18 to 24 for a limited time. That eakesthe Prime membership just $69/year or $7.49/month. If you are eligible for this offer, you will be able to keep it for as long as you remain an eligible student up to a total of 4 years or until you reach the age of 25. To be eligible for this deal, you must be a student with a valid .edu email address.