Yes, as PreciousLiberty mentioned Hawkings radiation will slowly (very slowly) evaporate a black whole. He did throw in that this evaporation is currently over whelmed by the cosmic background radiation, which I was unaware of (and I am thinking about). Also current theory is knowledge is not lost in a black whole either, Hawkins was proven wrong there.
IF a 'black hole' disappeared, would we ever know?
Hawkins is probably wrong about many things. It's just that he's less wrong than most people.