Shadowe2001 on the Slickdeals forum found a way to get Amazon.com Prime for 3 months. Add $100 of qualifying textbooks into your cart and you will be offered a trial membership of Prime for three months. Be sure to go into your account and turn off the automatic renewal or you’ll be billed in three months for the service.

You will need a non-registered email address, a non-registered credit card, and $100 of textbooks in your cart to qualify. You can active Amazon.com Prime and then not purchase the books. Read the thread for more details.

Looks like Amazon is trying to get more people on their Amazon Prime Program with a $10 promotion just to try out the service. The offer itself is a one month free trial plus a $10 gift certificate, offer expires July 28th.