The current status of experiments on the d=2 and d=3 random-exchange and
random-field Ising models, as realized in dilute anisotropic antiferromagnets,
is discussed. Two areas of current investigation are emphasized. For d=3, the
large random field limit is being investigated and equilibrium critical
behavior is being characterized at high magnetic concentrations.Comment: 19 pages, 7 figures, Ising Centennial Colloquium, to be published in
the Brazilian Journal of Physic
