The Khan Academy (donations) is the number-one not-for-profit I'd personally like to see start accepting Bitcoin donations. However, it might be a difficult entry for us, as I can see they receive donations in the millions from companies like Google or The Bill & Melinda Gates Foundation.

Perhaps we should focus on smaller, less well-funded organizations where our offering might make a greater impact. At the same time, having a big organization like Unicef or Amnesty International jump on board will hopefully trigger a chain reaction of others doing the same.

I think we need to find a sweet-spot between the two, where we can still make an impact, and the organization is well-known enough to provide not only Bitcoin, but this project, with some well-needed publicity.