Last year I received a 3 month free trial before the holidays and this morning I went to place an order and they offered me 2 free months.

So throw something in your cart at Amazon.com, go to check out (FYI you do NOT have to buy anything) and see if it's offered to you.

YMMV and I believe they offer between 1 and 3 months free depending on how much Amazon likes you. ;)

If you don't know what Amazon Prime is:

Amazon Prime is a membership program that gives you and your family "all-you-can-eat" fast shipping for eligible purchases. For an annual membership fee of $79 (but free for a 1 to 3 month trial) , you will enjoy:

Fast Delivery

Free Two-Day Shipping on more than one million in-stock items sold by Amazon.com.
Upgrades to One-Day (Overnight) Shipping for just $3.99 per item.
Free Standard Shipping for eligible items shipped to P.O. boxes in the continental United States (excluding Alaska, Hawaii, and U.S. territories, possessions and protectorates) and APO/FPO addresses with U.S. zip codes.
Simple Shopping

No minimum purchases required.
Members-only 1-Click buttons on product pages.
No need to think about shipping charges when you order.
Convenient Sharing

Shared benefits with up to four family members living in the same household.
BTW it is SUPER easy to cancel before the free trial ends and Amazon even sends you a reminder.