  We have studied the perturbation of a spinning dilaton black hole in 2 +1
dimensions by a massless scalar field. The wave equations of a massless scalar
field is shown to be exactly solvable in terms of hypergeometric functions. The
quasinormal frequencies are computed for slowly spinning black holes. The
stability of the black hole is discussed. The asymptotic form of the
quasinormal frequencies are evaluated. The area spectrum of the quantum black
holes are evaluated by using the asymptotic quasi-normal frequencies and is
shown to be equally-spaced.
