Out of curiosity, what has the discussion been of this over at Everything2
been? They have a lot more users, and would probably be a collectivly deeper pocket. And, of course, they love their site as much as we love ours. I imagine everyone's willing to contribute, but I'm not familiar with what legal loopholes you/we'd have to jump through to make everything work. You mention of a non-profit doesn't surprise me though.
BBSpot's got a paypal account (got rid of the Amazon account, yay!)...have you asked them how they're doing it?
I'm still a student, but the amount this site has contributed to my resume in just 6 months makes me happy to throw a few bucks this way.