Hey, this is Alex, one of the creators of Dripbook. Thanks for the props and kind words.
Here is an "Access Code" specific for 12oz Prophet readers. This Access Code will work to make 50 accounts on Dripbook, then it will stop working. We'd love to see more work from 12oz Prophet.
http://www.dripbook.com/ > look for "Signup" in the upper right hand corner.
Access Code : Dba_12oz_2309
Send ??s to contact@dripbook.com