AA has a monthly publication that contains stories for alcoholics written by alcoholics and is called "AA Grapevine."
I seem to remember there's something in each issue (one story selected each month) that the editors post questions for and say it can be used as an interesting topic for your next meeting. (???)
That's the only association between AA and Grapevine that I can think of.
Not 100% but if it's any consolation, you've inspired me to renew my subscription. Thanks!