  Until recently, dynamical supersymmetry breaking seemed an exceptional
phenomenon, involving chiral gauge theories with a special structure. Recently
it has become clear that requiring only metastable states with broken
supersymmetry leads to a far broader class of theories. In this paper, we
extend these constructions still further, finding new classes which, unlike
earlier theories, do not have unbroken, approximate $R$ symmetries. This allows
construction of new models with direct gauge mediation. These theories permit a
relatively compact solution to the $\mu$ problem.
