  We examine two point correlation functions involving the trace of the energy
momentum tensor in five dimensional gravity dual theories supported by one or
more scalar fields. A prescription for determining bulk channel spectral
functions is developed. This prescription generalizes previous work which
centered on one scalar field. As an application of these techniques, we
investigate the bulk spectral function and corresponding sum rule in the
Chamblin-Reall background. We show that, when expressed in terms of the beta
function, the sum rule for the Chamblin-Reall background can be written in a
form similar to the sum rule in Yang-Mills theory.
