From an email:
We're making it easier than ever for you to share the convenience of BLOCKBUSTER Online™ with others. For a limited time, you can treat your friends and family to one FREE MONTH of service!
Pass along the special Promotional Code word "friends" to anyone you wish.
When they visit www.blockbuster.com, sign up for membership and enter the word "friends" into the Promotional Code field, they will receive their first month of service FREE.
OR, forward this e-mail so your friends and family can directly access this special offer here:
FREE MONTH for FRIENDS and FAMILY
Sign up, enter the code, get great home entertainment FREE for one month. It's just that simple!
Thanks for spreading the word!
Your Friends at BLOCKBUSTER Online
Basically Blockbuster is trying to do what netflix does. I'm pretty sure I can burn through quite a few movies in one month of free rentals.