  The AdS/CFT correspondence has provided new and useful insights into the
nonperturbative regime of strongly coupled gauge theories. We construct a class
of models meant to mimic Yang-Mills theory using the superpotential method.
This method allows us to efficiently address the problem of solving all the
equations of motion. The conformal symmetry is broken in the infrared by a
dilaton field. Using a five-dimensional action we calculate the mass spectrum
of scalar glueballs. This spectrum contains a tachyon, indicating an
instability in the theory. We stabilize the theory by introducing a
cosmological constant in the bulk and a pair of 3-branes, as in the
Randall-Sundrum model. The scalar glueball masses computed by lattice gauge
theory are then described very well by just a few parameters. Prospects for
extending the model to other spins and parities and to finite temperature are
considered.
