When it comes to donations, you should opt to offer to buy equipment and physical items, otherwise all your money goes straight into admins pocket.
Fact: World vision only sends 4% (not a typo, FOUR percent) of it's aid in Africa. (ex-employee informant).
I am sorry, but this just cannot be correct as they are audited by PricewaterhouseCoopers and the accounts are lodged with ASIC. In 2011 76.5% of income went to fund international programs. Even if half of that went to employee people on the ground to help deliver the programs (which would be a very high ratio), there would still be a lot of actual aid making it to people in need.