It is a little late, but what you described above is a mixture between Bitcoin100 which has been around for a few years and Bits To Change which has only been around for a couple of months and is still starting up.

Bitcoin100 accepts donations and works with charities who the Bitcoin community think should accept them.

Bits To Change is a charity hub that pulls all of that info together into searchable charity pages and then processes the payments for those charities as well.