Systems driven out of equilibrium often reach a steady state which under generic conditions exhibits
long-range correlations. This is in contrast with systems in thermal equilibrium where long-range correlations
develop only at phase transition points. in some cases these correlations can even lead to long-range order in d=1 dimentions,
of the type occuring, for example, in traffic jams.Some simple systems with such long-range correlations in the steady state
will be presented and discussed. In particular the effect of l;ocal drive on the steady state of diffusive systems will be
considered in some detail. Another example is that of heat transport in one dimension, where the transport coefficient,
such as heat conductivity, will be discussed. Close sorrespondence of these nonequilibrium steady states with electrostatic potentials induces
by charge districution will be pointed out.