Is there a method of making donations to anonymous benefactors that more than 10% of the world population can contribute to, that doesn't require having local collection-points in each contributing area?
Now that I think of it, that'd kind of be a neat nonprofit startup: do what the Salvation Army does, putting lots of collectors on lots of corners--but instead of the collection being associated with a specific charity, people would be given a little envelope to put their money in and write what charity it's intended for (with some pre-printed envelopes handy for major ones, likely.) The company would centrally collate donations, and send cheques each month to the recipient charities. A recipient charity wouldn't even have to sign up for this; they'd just start receiving money (sort of like what happens with royalties when people listen to a song on Spotify.)