24 March 2013: If you're reading this note, then you've encountered this section while it's undergoing substantial revision; see producingoss.com/v2.html for details.

poss2 todo: Theory: bounties usually don't work in practice. Ask around, look for counterexamples. What about gun.io? See the amazing snowdrift.coop research survey: snowdrift.coop/p/snowdrift/w/othercrowdfunding (though it's about crowdfunding in general, not just bounties).