By the way, I totally support what you're doing and think it's a great idea. I just want to make sure that you've got your information right before you're up against people not so supportive, especially given that suggesting that businesses are homophobic or were against Prop 8 without adequate sources could be considered defamation in the eyes in the law (lawyer's kid in me coming out a bit).
Anyways good luck with what you're doing and there are definitely some businesses that won't be getting my future support.