Add the ASPCA, HSUS, and PETA to this list.
The ASPCA has stashed a million or two in an off-shore account. The E.D.s/CEOs of these gropus all receive hundreds of thousands of dollars compensation.
I only donate to charities that spend NO LESS than 80% on the actual cause, preferably more.
There is Charity Watch, Charity Navigator, and one other group whose name I always forget, that rates charities. Know before you give.