Local? National? when a crisis happens? When you see need? Personal health concerns? When you see heart-breaking ads on TV?
I donate to organizations that I am interested in and that seem to need money, but I also check them with the attorney general's office to see what percentage they spend on administrative costs and how much actually goes to the charity. I don't like to think that for every dollar I donate that 25cents, for example, goes to pay for advertising.
How do you determine where to donate?