Helping Hands – Monkey Helpers for the Disabled
I used to think this was a spoof site, but its a real charity. The total cost of breeding, training, and placing a monkey helper, with a life span of 30-40 years, is $25,000. In comparison, the cost of preparing a Seeing Eye dog with a 10-year life span is $21,000.

You really have to see this: George and his Helping Hands monkey Gizmo (quicktime movie)